html - 在 Div 之间绘制连接线？

标签 html css

我正在尝试制作一个锦标赛支架，我正在按照一个示例进行操作，但是它缺少线条，我想添加它们

https://codepen.io/jbeason/pen/Wbaedb 

<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
    <meta name="viewport" content="width=device-width,initial-scale=1.0">
    <link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet">
    <link href='https://fonts.googleapis.com/css?family=Holtwood+One+SC' rel='stylesheet' type='text/css'>
    <link href='https://fonts.googleapis.com/css?family=Kaushan+Script|Herr+Von+Muellerhoff' rel='stylesheet' type='text/css'>
    <link href='https://fonts.googleapis.com/css?family=Abel' rel='stylesheet' type='text/css'>
    <link href='https://fonts.googleapis.com/css?family=Istok+Web|Roboto+Condensed:700' rel='stylesheet' type='text/css'>

    <title>March Madness Stock Matchup</title>
</head>
<body>
    <header class="hero">
    <div class="hero-wrap">
     <p class="intro" id="intro">flexbox</p>
         <h1 id="headline">Tournament</h1>
         <p class="year"><i class="fa fa-star"></i> 2015 <i class="fa fa-star"></i></p>
     <p>Ballin' Outta Control</p>
   </div>
    </header>


    <section id="bracket">
    <div class="container">
    <div class="split split-one">
        <div class="round round-one current">
            <div class="round-details">Round 1<br/><span class="date">March 16</span></div>
            <ul class="matchup">
                <li class="team team-top">Duke<span class="score">76</span></li>
                <li class="team team-bottom">Virginia<span class="score">82</span></li>
            </ul>
            <ul class="matchup">
                <li class="team team-top">Wake Forest<span class="score">64</span></li>
                <li class="team team-bottom">Clemson<span class="score">56</span></li>
            </ul>
            <ul class="matchup">
                <li class="team team-top">North Carolina<span class="score">68</span></li>
                <li class="team team-bottom">Florida State<span class="score">54</span></li>
            </ul>
            <ul class="matchup">
                <li class="team team-top">NC State<span class="score">74</span></li>
                <li class="team team-bottom">Maryland<span class="score">92</span></li>
            </ul>           
            <ul class="matchup">
                <li class="team team-top">Georgia Tech<span class="score">78</span></li>
                <li class="team team-bottom">Georgia<span class="score">80</span></li>
            </ul>   
            <ul class="matchup">
                <li class="team team-top">Auburn<span class="score">64</span></li>
                <li class="team team-bottom">Florida<span class="score">63</span></li>
            </ul>   
            <ul class="matchup">
                <li class="team team-top">Kentucky<span class="score">70</span></li>
                <li class="team team-bottom">Alabama<span class="score">59</span></li>
            </ul>
            <ul class="matchup">
                <li class="team team-top">Vanderbilt<span class="score">64</span></li>
                <li class="team team-bottom">Gonzaga<span class="score">68</span></li>
            </ul>                                       
        </div>  <!-- END ROUND ONE -->

        <div class="round round-two">
            <div class="round-details">Round 2<br/><span class="date">March 18</span></div>         
            <ul class="matchup">
                <li class="team team-top">&nbsp;<span class="score">&nbsp;</span></li>
                <li class="team team-bottom">&nbsp;<span class="score">&nbsp;</span></li>
            </ul>   
            <ul class="matchup">
                <li class="team team-top">&nbsp;<span class="score">&nbsp;</span></li>
                <li class="team team-bottom">&nbsp;<span class="score">&nbsp;</span></li>
            </ul>   
            <ul class="matchup">
                <li class="team team-top">&nbsp;<span class="score">&nbsp;</span></li>
                <li class="team team-bottom">&nbsp;<span class="score">&nbsp;</span></li>
            </ul>
            <ul class="matchup">
                <li class="team team-top">&nbsp;<span class="score">&nbsp;</span></li>
                <li class="team team-bottom">&nbsp;<span class="score">&nbsp;</span></li>
            </ul>                                       
        </div>  <!-- END ROUND TWO -->

        <div class="round round-three">
            <div class="round-details">Round 3<br/><span class="date">March 22</span></div>         
            <ul class="matchup">
                <li class="team team-top">&nbsp;<span class="score">&nbsp;</span></li>
                <li class="team team-bottom">&nbsp;<span class="score">&nbsp;</span></li>
            </ul>   
            <ul class="matchup">
                <li class="team team-top">&nbsp;<span class="score">&nbsp;</span></li>
                <li class="team team-bottom">&nbsp;<span class="score">&nbsp;</span></li>
            </ul>                                       
        </div>  <!-- END ROUND THREE -->        
    </div> 

<div class="champion">
        <div class="semis-l">
            <div class="round-details">west semifinals <br/><span class="date">March 26-28</span></div>     
            <ul class ="matchup championship">
                <li class="team team-top">&nbsp;<span class="vote-count">&nbsp;</span></li>
                <li class="team team-bottom">&nbsp;<span class="vote-count">&nbsp;</span></li>
            </ul>
        </div>
        <div class="final">
            <i class="fa fa-trophy"></i>
            <div class="round-details">championship <br/><span class="date">March 30 - Apr. 1</span></div>      
            <ul class ="matchup championship">
                <li class="team team-top">&nbsp;<span class="vote-count">&nbsp;</span></li>
                <li class="team team-bottom">&nbsp;<span class="vote-count">&nbsp;</span></li>
            </ul>
        </div>
        <div class="semis-r">       
            <div class="round-details">east semifinals <br/><span class="date">March 26-28</span></div>     
            <ul class ="matchup championship">
                <li class="team team-top">&nbsp;<span class="vote-count">&nbsp;</span></li>
                <li class="team team-bottom">&nbsp;<span class="vote-count">&nbsp;</span></li>
            </ul>
        </div>  
    </div>


    <div class="split split-two">


        <div class="round round-three">
            <div class="round-details">Round 3<br/><span class="date">March 22</span></div>                     
            <ul class="matchup">
                <li class="team team-top">&nbsp;<span class="score">&nbsp;</span></li>
                <li class="team team-bottom">&nbsp;<span class="score">&nbsp;</span></li>
            </ul>   
            <ul class="matchup">
                <li class="team team-top">&nbsp;<span class="score">&nbsp;</span></li>
                <li class="team team-bottom">&nbsp;<span class="score">&nbsp;</span></li>
            </ul>                                       
        </div>  <!-- END ROUND THREE -->    

        <div class="round round-two">
            <div class="round-details">Round 2<br/><span class="date">March 18</span></div>                     
            <ul class="matchup">
                <li class="team team-top">&nbsp;<span class="score">&nbsp;</span></li>
                <li class="team team-bottom">&nbsp;<span class="score">&nbsp;</span></li>
            </ul>   
            <ul class="matchup">
                <li class="team team-top">&nbsp;<span class="score">&nbsp;</span></li>
                <li class="team team-bottom">&nbsp;<span class="score">&nbsp;</span></li>
            </ul>   
            <ul class="matchup">
                <li class="team team-top">&nbsp;<span class="score">&nbsp;</span></li>
                <li class="team team-bottom">&nbsp;<span class="score">&nbsp;</span></li>
            </ul>
            <ul class="matchup">
                <li class="team team-top">&nbsp;<span class="score">&nbsp;</span></li>
                <li class="team team-bottom">&nbsp;<span class="score">&nbsp;</span></li>
            </ul>                                       
        </div>  <!-- END ROUND TWO -->
        <div class="round round-one current">
            <div class="round-details">Round 1<br/><span class="date">March 16</span></div>
            <ul class="matchup">
                <li class="team team-top">Minnesota<span class="score">62</span></li>
                <li class="team team-bottom">Northwestern<span class="score">54</span></li>
            </ul>
            <ul class="matchup">
                <li class="team team-top">Michigan<span class="score">68</span></li>
                <li class="team team-bottom">Iowa<span class="score">66</span></li>
            </ul>
            <ul class="matchup">
                <li class="team team-top">Illinois<span class="score">64</span></li>
                <li class="team team-bottom">Wisconsin<span class="score">56</span></li>
            </ul>
            <ul class="matchup">
                <li class="team team-top">Purdue<span class="score">36</span></li>
                <li class="team team-bottom">Boise State<span class="score">40</span></li>
            </ul>           
            <ul class="matchup">
                <li class="team team-top">Penn State<span class="score">38</span></li>
                <li class="team team-bottom">Indiana<span class="score">44</span></li>
            </ul>   
            <ul class="matchup">
                <li class="team team-top">Ohio State<span class="score">52</span></li>
                <li class="team team-bottom">VCU<span class="score">80</span></li>
            </ul>   
            <ul class="matchup">
                <li class="team team-top">USC<span class="score">58</span></li>
                <li class="team team-bottom">Cal<span class="score">59</span></li>
            </ul>
            <ul class="matchup">
                <li class="team team-top">Virginia Tech<span class="score">74</span></li>
                <li class="team team-bottom">Dartmouth<span class="score">111</span></li>
            </ul>                                       
        </div>  <!-- END ROUND ONE -->                          
    </div>
    </div>
    </section>
    <section class="share">
            <div class="share-wrap">
                <a class="share-icon" href="https://twitter.com/_joebeason"><i class="fa fa-twitter"></i></a>
                <a class="share-icon" href="#"><i class="fa fa-facebook"></i></a>
                <a class="share-icon" href="#"><i class="fa fa-envelope"></i></a>
            </div>
    </section>

body {
  font-family: "Istok Web", sans-serif;
  background: url("http://picjumbo.com/wp-content/uploads/HNCK2189-1300x866.jpg")
    no-repeat #000;
  background-size: cover;
  min-height: 100%;
  margin: 0;
}
.hero {
  position: relative;
  text-align: center;
  overflow: hidden;
  color: #fcfcfc;
}
.hero h1 {
  font-family: "Holtwood One SC", serif;
  font-weight: normal;
  font-size: 5.4em;
  margin: 0 0 20px;
  text-shadow: 0 0 12px rgba(0, 0, 0, 0.5);
  text-transform: uppercase;
  letter-spacing: -1px;
}
.hero p {
  font-family: "Abel", sans-serif;
  text-transform: uppercase;
  color: #5cca87;
  letter-spacing: 6px;
  text-shadow: 0 0 12px rgba(0, 0, 0, 0.5);
  font-size: 1.2em;
}
.hero-wrap {
  padding: 3.5em 10px;
}
.hero p.intro {
  font-family: "Holtwood One SC", serif;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 3em;
  margin-bottom: -40px;
}
.hero p.year {
  color: #fff;
  letter-spacing: 20px;
  font-size: 34px;
  margin: -25px 0 25px;
}
.hero p.year i {
  font-size: 14px;
  vertical-align: middle;
}
#bracket {
  overflow: hidden;
  background-color: #e1e1e1;
  background-color: rgba(225, 225, 225, 0.9);
  padding-top: 20px;
  font-size: 12px;
  padding: 40px 0;
}
.container {
  max-width: 1100px;
  margin: 0 auto;
  display: block;
  display: -webkit-box;
  display: -moz-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: -webkit-flex;
  display: flex;
  -webkit-flex-direction: row;
  flex-direction: row;
}
.split {
  display: block;
  float: left;
  display: -webkit-box;
  display: -moz-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  width: 42%;
  -webkit-flex-direction: row;
  -moz-flex-direction: row;
  flex-direction: row;
}
.champion {
  float: left;
  display: block;
  width: 16%;
  -webkit-flex-direction: row;
  flex-direction: row;
  -webkit-align-self: center;
  align-self: center;
  margin-top: -15px;
  text-align: center;
  padding: 230px 0\9;
}
.champion i {
  color: #a0a6a8;
  font-size: 45px;
  padding: 10px 0;
}
.round {
  display: block;
  float: left;
  display: -webkit-box;
  display: -moz-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  -webkit-flex-direction: column;
  flex-direction: column;
  width: 95%;
  width: 30.8333%\9;
}
.split-two {
}
.split-one .round {
  margin: 0 2.5% 0 0;
}
.split-two .round {
  margin: 0 0 0 2.5%;
}
.matchup {
  margin: 0;
  width: 100%;
  padding: 10px 0;
  height: 60px;
  -webkit-transition: all 0.2s;
  transition: all 0.2s;
}
.score {
  font-size: 11px;
  text-transform: uppercase;
  float: right;
  color: #2c7399;
  font-weight: bold;
  font-family: "Roboto Condensed", sans-serif;
  position: absolute;
  right: 5px;
}
.team {
  padding: 0 5px;
  margin: 3px 0;
  height: 25px;
  line-height: 25px;
  white-space: nowrap;
  overflow: hidden;
  position: relative;
}
.round-two .matchup {
  margin: 0;
  height: 60px;
  padding: 50px 0;
}
.round-three .matchup {
  margin: 0;
  height: 60px;
  padding: 130px 0;
}
.round-details {
  font-family: "Roboto Condensed", sans-serif;
  font-size: 13px;
  color: #2c7399;
  text-transform: uppercase;
  text-align: center;
  height: 40px;
}
.champion li,
.round li {
  background-color: #fff;
  box-shadow: none;
  opacity: 0.45;
}
.current li {
  opacity: 1;
}
.current li.team {
  background-color: #fff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
  opacity: 1;
}
.vote-options {
  display: block;
  height: 52px;
}
.share .container {
  margin: 0 auto;
  text-align: center;
}
.share-icon {
  font-size: 24px;
  color: #fff;
  padding: 25px;
}
.share-wrap {
  max-width: 1100px;
  text-align: center;
  margin: 60px auto;
}
.final {
  margin: 4.5em 0;
}

@-webkit-keyframes pulse {
  0% {
    -webkit-transform: scale(1);
    transform: scale(1);
  }

  50% {
    -webkit-transform: scale(1.3);
    transform: scale(1.3);
  }

  100% {
    -webkit-transform: scale(1);
    transform: scale(1);
  }
}

@keyframes pulse {
  0% {
    -webkit-transform: scale(1);
    -ms-transform: scale(1);
    transform: scale(1);
  }

  50% {
    -webkit-transform: scale(1.3);
    -ms-transform: scale(1.3);
    transform: scale(1.3);
  }

  100% {
    -webkit-transform: scale(1);
    -ms-transform: scale(1);
    transform: scale(1);
  }
}

.share-icon {
  color: #fff;
  opacity: 0.35;
}
.share-icon:hover {
  opacity: 1;
  -webkit-animation: pulse 0.5s;
  animation: pulse 0.5s;
}
.date {
  font-size: 10px;
  letter-spacing: 2px;
  font-family: "Istok Web", sans-serif;
  color: #3f915f;
}

@media screen and (min-width: 981px) and (max-width: 1099px) {
  .container {
    margin: 0 1%;
  }
  .champion {
    width: 14%;
  }
  .split {
    width: 43%;
  }
  .split-one .vote-box {
    margin-left: 138px;
  }
  .hero p.intro {
    font-size: 28px;
  }
  .hero p.year {
    margin: 5px 0 10px;
  }
}

@media screen and (max-width: 980px) {
  .container {
    -webkit-flex-direction: column;
    -moz-flex-direction: column;
    flex-direction: column;
  }
  .split,
  .champion {
    width: 90%;
    margin: 35px 5%;
  }
  .champion {
    -webkit-box-ordinal-group: 3;
    -moz-box-ordinal-group: 3;
    -ms-flex-order: 3;
    -webkit-order: 3;
    order: 3;
  }
  .split {
    border-bottom: 1px solid #b6b6b6;
    padding-bottom: 20px;
  }
  .hero p.intro {
    font-size: 24px;
  }
  .hero h1 {
    font-size: 3em;
    margin: 15px 0;
  }
  .hero p {
    font-size: 1em;
  }
}

@media screen and (max-width: 400px) {
  .split {
    width: 95%;
    margin: 25px 2.5%;
  }
  .round {
    width: 21%;
  }
  .current {
    -webkit-flex-grow: 1;
    -moz-flex-grow: 1;
    flex-grow: 1;
  }
  .hero h1 {
    font-size: 2.15em;
    letter-spacing: 0;
    margin: 0;
  }
  .hero p.intro {
    font-size: 1.15em;
    margin-bottom: -10px;
  }
  .round-details {
    font-size: 90%;
  }
  .hero-wrap {
    padding: 2.5em;
  }
  .hero p.year {
    margin: 5px 0 10px;
    font-size: 18px;
  }
}

enter image description here

我想像上面那样做(当然是直线)。

我不确定该怎么做，首先我想到将这 4 个插槽包装到另一个 div 中并放置一个边框，但这行不通，因为包装器会更大，边框会太大。

然后我想做这样的事情:http://jsfiddle.net/AcuPp/3/

我有另一个“连接器”和“线”容器，但这似乎对边距很挑剔。

最佳答案

这是一个伪元素的想法。

相关代码:

.split-one ul.matchup:nth-child(odd)::after,
.split-one ul.matchup:nth-child(even)::after,
.split-two ul.matchup:nth-child(odd)::after,
.split-two ul.matchup:nth-child(even)::after{
    content: "";
    position: absolute;
    left: calc(100% + 5px);
    top: 0;
    bottom: 50%;
    width:4px;
    border-left: 2px solid red;
    border-top:2px solid red;
}
.split-two ul.matchup:nth-child(odd)::after,
.split-two ul.matchup:nth-child(even)::after {
    right:calc(100% + 5px);
    left:auto;
    border-right: 2px solid red;
    border-left:0;
}

.split-one ul.matchup:nth-child(even)::after,
.split-two ul.matchup:nth-child(even)::after{
    top: 50%;
    bottom: 0%;
    border-bottom:2px solid red;
    border-top:0;
}
.matchup {
    position: relative;
}

完整代码

body {font-family: 'Istok Web', sans-serif;background: url("http://picjumbo.com/wp-content/uploads/HNCK2189-1300x866.jpg") no-repeat #000;background-size: cover;min-height: 100%;margin: 0;}
.hero {position:relative; text-align: center; overflow: hidden; color: #fcfcfc; }
.hero h1 {font-family: 'Holtwood One SC', serif;font-weight: normal;font-size: 5.4em;margin:0 0 20px; text-shadow:0 0 12px rgba(0, 0, 0, 0.5);text-transform: uppercase;letter-spacing:-1px;}
.hero p {font-family: 'Abel', sans-serif;text-transform: uppercase; color: #5CCA87; letter-spacing: 6px;text-shadow:0 0 12px rgba(0, 0, 0, 0.5);font-size: 1.2em;}
.hero-wrap {padding: 3.5em 10px;}
.hero p.intro {font-family: 'Holtwood One SC', serif;text-transform: uppercase;letter-spacing: 1px;font-size: 3em;margin-bottom:-40px;}
.hero p.year {color: #fff; letter-spacing: 20px; font-size: 34px; margin: -25px 0 25px;}
.hero p.year i {font-size: 14px;vertical-align: middle;}
#bracket {overflow:hidden;background-color: #e1e1e1;background-color:rgba(225,225,225,0.9);padding-top: 20px;font-size: 12px;padding: 40px 0;}
.container {max-width: 1100px;margin: 0 auto;display:block;display: -webkit-box;display: -moz-box;display: -ms-flexbox;display: -webkit-flex;display: -webkit-flex;display: flex;-webkit-flex-direction:row;flex-direction: row;}
.split {display:block;float:left;display: -webkit-box;display: -moz-box;display: -ms-flexbox;display: -webkit-flex;display:flex;width: 42%;-webkit-flex-direction:row;-moz-flex-direction:row;flex-direction:row;}
.champion {float:left;display:block;width: 16%;-webkit-flex-direction:row;flex-direction:row;-webkit-align-self:center;align-self:center;margin-top: -15px;text-align: center;padding: 230px 0\9;} 
.champion i {color: #a0a6a8; font-size: 45px;padding: 10px 0; }
.round {display:block;float:left;display: -webkit-box;display: -moz-box;display: -ms-flexbox;display: -webkit-flex;display:flex;-webkit-flex-direction:column;flex-direction:column;width:95%;width:30.8333%\9;}
.split-two {}
.split-one .round {margin: 0 2.5% 0 0;}
.split-two .round {margin: 0 0 0 2.5%;}
.matchup {margin:0;width: 100%;padding: 10px 0;height:60px;-webkit-transition: all 0.2s;transition: all 0.2s;}
.score {font-size: 11px;text-transform: uppercase;float: right;color: #2C7399;font-weight: bold;font-family: 'Roboto Condensed', sans-serif;position: absolute;right: 5px;}
.team {padding: 0 5px;margin: 3px 0;height: 25px; line-height: 25px;white-space: nowrap; overflow: hidden;position: relative;}
.round-two .matchup {margin:0; height: 60px;padding: 50px 0;}
.round-three .matchup {margin:0; height: 60px; padding: 130px 0;}
.round-details {font-family: 'Roboto Condensed', sans-serif; font-size: 13px; color: #2C7399;text-transform: uppercase;text-align: center;height: 40px;}
.champion li, .round li {background-color: #fff;box-shadow: none; opacity: 0.45;}
.current li {opacity: 1;}
.current li.team {background-color: #fff;box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);opacity: 1;}
.vote-options {display: block;height: 52px;}
.share .container {margin: 0 auto; text-align: center;}
.share-icon {font-size: 24px; color: #fff;padding: 25px;}
.share-wrap {max-width: 1100px; text-align: center; margin: 60px auto;}
.final {margin: 4.5em 0;}

@-webkit-keyframes pulse {
  0% {
    -webkit-transform: scale(1);
    transform: scale(1);
  }

  50% {
    -webkit-transform: scale(1.3);
    transform: scale(1.3);
  }

  100% {
    -webkit-transform: scale(1);
    transform: scale(1);
  }
}

@keyframes pulse {
  0% {
    -webkit-transform: scale(1);
    -ms-transform: scale(1);
    transform: scale(1);
  }

  50% {
    -webkit-transform: scale(1.3);
    -ms-transform: scale(1.3);
    transform: scale(1.3);
  }

  100% {
    -webkit-transform: scale(1);
    -ms-transform: scale(1);
    transform: scale(1);
  }
}

.share-icon {color: #fff; opacity: 0.35; }
.share-icon:hover { opacity:1;  -webkit-animation: pulse 0.5s; animation: pulse 0.5s;}
.date {font-size: 10px; letter-spacing: 2px;font-family: 'Istok Web', sans-serif;color:#3F915F;}



@media screen and (min-width: 981px) and (max-width: 1099px) {
  .container {margin: 0 1%;}
  .champion {width: 14%;}
  .split {width:43%; }
  .split-one .vote-box {margin-left: 138px;}
  .hero p.intro {font-size: 28px;}
  .hero p.year {margin: 5px 0 10px;}

}

@media screen and (max-width: 980px) {
  .container {-webkit-flex-direction:column;-moz-flex-direction:column;flex-direction:column;}
  .split, .champion {width: 90%;margin: 35px 5%;}
  .champion {-webkit-box-ordinal-group:3;-moz-box-ordinal-group:3;-ms-flex-order:3;-webkit-order:3;order:3;}
  .split {border-bottom: 1px solid #b6b6b6; padding-bottom: 20px;}
  .hero p.intro {font-size: 24px;}
  .hero h1 {font-size: 3em; margin: 15px 0;}
  .hero p {font-size: 1em;}
}


@media screen and (max-width: 400px) {

  .split {width: 95%;margin: 25px 2.5%;}
  .round {width:21%;}
  .current {-webkit-flex-grow:1;-moz-flex-grow:1;flex-grow:1;}
  .hero h1 {font-size: 2.15em; letter-spacing: 0;margin:0; }
  .hero p.intro {font-size: 1.15em;margin-bottom: -10px;}
  .round-details {font-size: 90%;}
  .hero-wrap {padding: 2.5em;}
  .hero p.year {margin: 5px 0 10px; font-size: 18px;}

}

.split-one ul.matchup:nth-child(odd)::after,
.split-one ul.matchup:nth-child(even)::after,
.split-two ul.matchup:nth-child(odd)::after,
.split-two ul.matchup:nth-child(even)::after{
    content: "";
    position: absolute;
    left: calc(100% + 5px);
    top: 0;
    border-left: 2px solid red;
    width:4px;
    border-top:2px solid red;
    bottom: 50%;
}
.split-two ul.matchup:nth-child(odd)::after,
.split-two ul.matchup:nth-child(even)::after {
    right:calc(100% + 5px);
    left:auto;
    border-right: 2px solid red;
    border-left:0;
}

.split-one ul.matchup:nth-child(even)::after,
.split-two ul.matchup:nth-child(even)::after{
    top: 50%;
    bottom: 0%;
    border-bottom:2px solid red;
    border-top:0;
}
.matchup {
    position: relative;
}
<head>
	<meta charset="utf-8">
	<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
	<meta name="viewport" content="width=device-width,initial-scale=1.0">
	<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet">
	<link href='https://fonts.googleapis.com/css?family=Holtwood+One+SC' rel='stylesheet' type='text/css'>
	<link href='https://fonts.googleapis.com/css?family=Kaushan+Script|Herr+Von+Muellerhoff' rel='stylesheet' type='text/css'>
	<link href='https://fonts.googleapis.com/css?family=Abel' rel='stylesheet' type='text/css'>
	<link href='https://fonts.googleapis.com/css?family=Istok+Web|Roboto+Condensed:700' rel='stylesheet' type='text/css'>

	<title>March Madness Stock Matchup</title>
</head>
<body>
	<header class="hero">
    <div class="hero-wrap">
     <p class="intro" id="intro">flexbox</p>
		 <h1 id="headline">Tournament</h1>
		 <p class="year"><i class="fa fa-star"></i> 2015 <i class="fa fa-star"></i></p>
     <p>Ballin' Outta Control</p>
   </div>
	</header>


	<section id="bracket">
	<div class="container">
	<div class="split split-one">
		<div class="round round-one current">
			<div class="round-details">Round 1<br/><span class="date">March 16</span></div>
			<ul class="matchup">
				<li class="team team-top">Duke<span class="score">76</span></li>
				<li class="team team-bottom">Virginia<span class="score">82</span></li>
			</ul>
			<ul class="matchup">
				<li class="team team-top">Wake Forest<span class="score">64</span></li>
				<li class="team team-bottom">Clemson<span class="score">56</span></li>
			</ul>
			<ul class="matchup">
				<li class="team team-top">North Carolina<span class="score">68</span></li>
				<li class="team team-bottom">Florida State<span class="score">54</span></li>
			</ul>
			<ul class="matchup">
				<li class="team team-top">NC State<span class="score">74</span></li>
				<li class="team team-bottom">Maryland<span class="score">92</span></li>
			</ul>			
			<ul class="matchup">
				<li class="team team-top">Georgia Tech<span class="score">78</span></li>
				<li class="team team-bottom">Georgia<span class="score">80</span></li>
			</ul>	
			<ul class="matchup">
				<li class="team team-top">Auburn<span class="score">64</span></li>
				<li class="team team-bottom">Florida<span class="score">63</span></li>
			</ul>	
			<ul class="matchup">
				<li class="team team-top">Kentucky<span class="score">70</span></li>
				<li class="team team-bottom">Alabama<span class="score">59</span></li>
			</ul>
			<ul class="matchup">
				<li class="team team-top">Vanderbilt<span class="score">64</span></li>
				<li class="team team-bottom">Gonzaga<span class="score">68</span></li>
			</ul>										
		</div>	<!-- END ROUND ONE -->

		<div class="round round-two">
			<div class="round-details">Round 2<br/><span class="date">March 18</span></div>			
			<ul class="matchup">
				<li class="team team-top">&nbsp;<span class="score">&nbsp;</span></li>
				<li class="team team-bottom">&nbsp;<span class="score">&nbsp;</span></li>
			</ul>	
			<ul class="matchup">
				<li class="team team-top">&nbsp;<span class="score">&nbsp;</span></li>
				<li class="team team-bottom">&nbsp;<span class="score">&nbsp;</span></li>
			</ul>	
			<ul class="matchup">
				<li class="team team-top">&nbsp;<span class="score">&nbsp;</span></li>
				<li class="team team-bottom">&nbsp;<span class="score">&nbsp;</span></li>
			</ul>
			<ul class="matchup">
				<li class="team team-top">&nbsp;<span class="score">&nbsp;</span></li>
				<li class="team team-bottom">&nbsp;<span class="score">&nbsp;</span></li>
			</ul>										
		</div>	<!-- END ROUND TWO -->
		
		<div class="round round-three">
			<div class="round-details">Round 3<br/><span class="date">March 22</span></div>			
			<ul class="matchup">
				<li class="team team-top">&nbsp;<span class="score">&nbsp;</span></li>
				<li class="team team-bottom">&nbsp;<span class="score">&nbsp;</span></li>
			</ul>	
			<ul class="matchup">
				<li class="team team-top">&nbsp;<span class="score">&nbsp;</span></li>
				<li class="team team-bottom">&nbsp;<span class="score">&nbsp;</span></li>
			</ul>										
		</div>	<!-- END ROUND THREE -->		
	</div> 

<div class="champion">
		<div class="semis-l">
			<div class="round-details">west semifinals <br/><span class="date">March 26-28</span></div>		
			<ul class ="matchup championship">
				<li class="team team-top">&nbsp;<span class="vote-count">&nbsp;</span></li>
				<li class="team team-bottom">&nbsp;<span class="vote-count">&nbsp;</span></li>
			</ul>
		</div>
		<div class="final">
			<i class="fa fa-trophy"></i>
			<div class="round-details">championship <br/><span class="date">March 30 - Apr. 1</span></div>		
			<ul class ="matchup championship">
				<li class="team team-top">&nbsp;<span class="vote-count">&nbsp;</span></li>
				<li class="team team-bottom">&nbsp;<span class="vote-count">&nbsp;</span></li>
			</ul>
		</div>
		<div class="semis-r">		
			<div class="round-details">east semifinals <br/><span class="date">March 26-28</span></div>		
			<ul class ="matchup championship">
				<li class="team team-top">&nbsp;<span class="vote-count">&nbsp;</span></li>
				<li class="team team-bottom">&nbsp;<span class="vote-count">&nbsp;</span></li>
			</ul>
		</div>	
	</div>


	<div class="split split-two">


		<div class="round round-three">
			<div class="round-details">Round 3<br/><span class="date">March 22</span></div>						
			<ul class="matchup">
				<li class="team team-top">&nbsp;<span class="score">&nbsp;</span></li>
				<li class="team team-bottom">&nbsp;<span class="score">&nbsp;</span></li>
			</ul>	
			<ul class="matchup">
				<li class="team team-top">&nbsp;<span class="score">&nbsp;</span></li>
				<li class="team team-bottom">&nbsp;<span class="score">&nbsp;</span></li>
			</ul>										
		</div>	<!-- END ROUND THREE -->	

		<div class="round round-two">
			<div class="round-details">Round 2<br/><span class="date">March 18</span></div>						
			<ul class="matchup">
				<li class="team team-top">&nbsp;<span class="score">&nbsp;</span></li>
				<li class="team team-bottom">&nbsp;<span class="score">&nbsp;</span></li>
			</ul>	
			<ul class="matchup">
				<li class="team team-top">&nbsp;<span class="score">&nbsp;</span></li>
				<li class="team team-bottom">&nbsp;<span class="score">&nbsp;</span></li>
			</ul>	
			<ul class="matchup">
				<li class="team team-top">&nbsp;<span class="score">&nbsp;</span></li>
				<li class="team team-bottom">&nbsp;<span class="score">&nbsp;</span></li>
			</ul>
			<ul class="matchup">
				<li class="team team-top">&nbsp;<span class="score">&nbsp;</span></li>
				<li class="team team-bottom">&nbsp;<span class="score">&nbsp;</span></li>
			</ul>										
		</div>	<!-- END ROUND TWO -->
 		<div class="round round-one current">
			<div class="round-details">Round 1<br/><span class="date">March 16</span></div>
			<ul class="matchup">
				<li class="team team-top">Minnesota<span class="score">62</span></li>
				<li class="team team-bottom">Northwestern<span class="score">54</span></li>
			</ul>
			<ul class="matchup">
				<li class="team team-top">Michigan<span class="score">68</span></li>
				<li class="team team-bottom">Iowa<span class="score">66</span></li>
			</ul>
			<ul class="matchup">
				<li class="team team-top">Illinois<span class="score">64</span></li>
				<li class="team team-bottom">Wisconsin<span class="score">56</span></li>
			</ul>
			<ul class="matchup">
				<li class="team team-top">Purdue<span class="score">36</span></li>
				<li class="team team-bottom">Boise State<span class="score">40</span></li>
			</ul>			
			<ul class="matchup">
				<li class="team team-top">Penn State<span class="score">38</span></li>
				<li class="team team-bottom">Indiana<span class="score">44</span></li>
			</ul>	
			<ul class="matchup">
				<li class="team team-top">Ohio State<span class="score">52</span></li>
				<li class="team team-bottom">VCU<span class="score">80</span></li>
			</ul>	
			<ul class="matchup">
				<li class="team team-top">USC<span class="score">58</span></li>
				<li class="team team-bottom">Cal<span class="score">59</span></li>
			</ul>
			<ul class="matchup">
				<li class="team team-top">Virginia Tech<span class="score">74</span></li>
				<li class="team team-bottom">Dartmouth<span class="score">111</span></li>
			</ul>										
		</div>	<!-- END ROUND ONE -->          				
	</div>
	</div>
	</section>
	<section class="share">
			<div class="share-wrap">
				<a class="share-icon" href="https://twitter.com/_joebeason"><i class="fa fa-twitter"></i></a>
				<a class="share-icon" href="#"><i class="fa fa-facebook"></i></a>
				<a class="share-icon" href="#"><i class="fa fa-envelope"></i></a>
			</div>
	</section>

如果你想要一个完整的连接，你可以像下面这样调整:

.split-one ul.matchup:nth-child(odd)::after,
.split-one ul.matchup:nth-child(even)::after,
.split-two ul.matchup:nth-child(odd)::after,
.split-two ul.matchup:nth-child(even)::after {
  content: "";
  position: absolute;
  left: 100%;
  top: 0;
  width: 10px;
  bottom: 50%;
  background: 
    linear-gradient(red, red) bottom left /50% 2px, 
    linear-gradient(red, red) center      /2px 100%, 
    linear-gradient(red, red) top right   /50% 2px;
  background-repeat: no-repeat;
}

.split-two ul.matchup:nth-child(odd)::after,
.split-two ul.matchup:nth-child(even)::after {
  right: 100%;
  left: auto;
  transform: scaleY(-1);
}

.split-one ul.matchup:nth-child(even)::after {
  top: 50%;
  bottom: 0%;
  transform: scaleX(-1);
}

.split-two ul.matchup:nth-child(even)::after {
  top: 50%;
  bottom: 0%;
  transform: scale(-1);
}

.matchup {
  position: relative;
}

完整代码:

https://jsfiddle.net/fohbctsj/1/

关于html - 在 Div 之间绘制连接线？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/59672221/

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