html - 通过 Bootstrap 列在页面上居中 <divs

标签 html css twitter-bootstrap

我有一些 jQuery 脚本可以通过单击 Get in contact 来显示联系表单。 .两者，<div> Get in contact 的元素-按钮和 <div>联系表格的元素包裹在 <div class=" col-md-12 text-center"> 中，列比率仍然不像我想的那样:resp。 3-6-3 和 2-8-2。两者，Get in contact联系表格就放在左边的某个地方。

如何将两者居中？提前致谢!

Codepen (改变缩放适合它不再在中心)

HTML: 

<body>
 <head>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>JFP</title>
    <link rel="stylesheet" href="http://s3.amazonaws.com/codecademy-content/courses/ltp/css/bootstrap.css">
        <link rel="stylesheet" href="/static/main.css" >
    <link rel="stylesheet" href="http://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.4.0/css/font-awesome.min.css">
    <script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
    <script type="text/javascript" src="http://code.jquery.com/jquery-latest.min.js"></script>
    <script src="/static/app.js"></script>
</head>


<div class="supporting">
    <div class="container" style="min-height:300px;">
      <div class="col-md-12 text-center">
        <div class="col-md-3 text-center"></div>
            <div class="col-md-6 text-center">
                <img src="http://rexkirby.com/kirbyandson/images/email.svg">
                <h2>Contact</h2>
                <p></p>
                <div class="contact-form">
                    <b>Get in contact</b>
                </div>  

              <div class="col-md-3 text-center"></div>
        </div>
        </div>
    </div>
</div>


<div class="contactform" style="display:none">
    <div class="container">
        <div class=" col-md-12 text-center">
            <div class="col-md-2">
            </div>
            <div class="col-md-8 text-center">
                <form class="form" id="form1">

                <p class="name">
                <input name="name" type="text" class="validate[required,custom[onlyLetter],length[0,100]] feedback-input" placeholder="Name" id="name" />
                </p>

                <p class="email">
                <input name="email" type="text" class="validate[required,custom[email]] feedback-input" id="email" placeholder="Email" />
                </p>

                <p class="text">
                <textarea name="text" class="validate[required,length[6,300]] feedback-input" id="comment" placeholder="Comment"></textarea>
                </p>

                <div class="row col text-center">
                <div class="submit">
                <input type="submit" value="SEND" id="button-blue"/>
                <div class="ease"></div>
                </div>
                </div>
                </form>
            </div>
            <div class="col-md-2">
            </div>
        </div>
    </div>
</div>
</body>

CSS: 

.supporting {
    padding-top: 80px;
    padding-bottom: 100px;

}

.supporting .col-md-6 {
    font-family: 'Open Sans', sans-serif;
    text-align: center;
    margin-bottom: 64px;
    padding: 0px 0px;
}

.supporting img {
    height: 40px;
}

.supporting .col-md-6 h1 {
    font-size: 35px;
    padding-bottom: 48px;
    margin-top: 49px;
}

.supporting h2 {
    font-weight: 600;
    font-size: 23px;
    text-transform: uppercase;
    padding: 0 50px;
    margin-bottom: 60px;
}

.supporting p {
    font-weight: 400;
    font-size: 14px;
    line-height: 20px;
}

.supporting a {
    font-size: 10px;
    color: rgb(51,51,51);
    font-weight: 600;
    border: 1px solid rgb(51,51,51);
    padding: 15px 50px;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1.1px;
    position: relative;
}

.supporting b {
    font-size: 10px;
    color: rgb(51,51,51);
    font-weight: 600;
    border: 1px solid rgb(51,51,51);
    padding: 15px 39px;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1.1px;
    position: relative;
}

.supporting c {
    font-size: 15px;
    color: rgb(51,51,51);
}


.clearfix {
    clear: both;
}

#feedback-page{
    text-align:center;
}

#form-main{
    width:100%;
    float:middle;
    padding-top:0px;
}

#form-div {
    background-color:rgba(72,72,72,0.4);
    padding-left:35px;
    padding-right:35px;
    padding-top:35px;
    padding-bottom:50px;
    width: 450px;
    float: middle;
    left: 50%;
    position: absolute;
    margin-top:30px;
    margin-left: -260px;
    -moz-border-radius: 7px;
    -webkit-border-radius: 7px;
}

.feedback-input {
    color:#3c3c3c;
    font-family: 'Open Sans', sans-serif;
    font-weight:500;
    font-size: 18px;
    border-radius: 0;
    line-height: 22px;
    background-color: rgb(245,245,245);
    padding: 13px 13px 13px 54px;
    margin-bottom: 10px;
    width:100%;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    -ms-box-sizing: border-box;
    box-sizing: border-box;
    border: 3px solid rgba(0,0,0,0);
}

.feedback-input:focus{
    background: #fff;
    box-shadow: 0;
    border: 3px solid rgb(42,186,214);
    color: rgb(51,51,51);
    outline: none;
    padding: 13px 13px 13px 54px;
}

.focused{
    color:#30aed6;
    border:#30aed6 solid 3px;
}

#name{
    background-image: url(http://rexkirby.com/kirbyandson/images/name.svg);
    background-size: 30px 30px;
    background-position: 11px 8px;
    background-repeat: no-repeat;
}

#name:focus{
    background-image: url(http://rexkirby.com/kirbyandson/images/name.svg);
    background-size: 30px 30px;
    background-position: 8px 5px;
    background-position: 11px 8px;
    background-repeat: no-repeat;
}

#email{
    background-image: url(http://rexkirby.com/kirbyandson/images/email.svg);
    background-size: 30px 30px;
    background-position: 11px 8px;
    background-repeat: no-repeat;
}

#email:focus{
    background-image: url(http://rexkirby.com/kirbyandson/images/email.svg);
    background-size: 30px 30px;
    background-position: 11px 8px;
    background-repeat: no-repeat;
}

#comment{
    background-image: url(https://s3.amazonaws.com/codecademy-content/projects/broadway/design.svg);
    background-size: 30px 30px;
    background-position: 11px 8px;
    background-repeat: no-repeat;
}

textarea {
    width: 100%;
    height: 150px;
    line-height: 150%;
    resize:vertical;
}

input:hover, textarea:hover,
input:focus, textarea:focus {
    background-color:white;
}

#button-blue{
    font-family: 'Open Sans', sans-serif;
    float:middle;
    width: 25%;
    border: rgb(51,51,51) solid 1px;
    cursor:pointer;
    background-color: rgb(255,255,255);
    color: rgb(51,51,51);
    font-size: 16px;
    padding-top:12px;
    padding-bottom:12px;
    -webkit-transition: all 0.3s;
    -moz-transition: all 0.3s;
    transition: all 0.3s;
    margin-top:-4px;
    font-weight:600;
    letter-spacing: 1.1px;
}

#button-blue:hover{
    color: rgb(51,51,51);
}

.submit:hover {
    rgb(51,51,51);
}

.ease {
    width: 0px;
    height: 74px;
    background-color: #fbfbfb;
    -webkit-transition: .3s ease;
    -moz-transition: .3s ease;
    -o-transition: .3s ease;
    -ms-transition: .3s ease;
    transition: .3s ease;
}

.submit:hover .ease{
    width:100%;
    background-color:white;
}

JS: 

$(document).ready(function() {
        $(".contact-form").click(function() {
            $(".contactform").slideToggle(300);
        });
});

$(document).ready(function() {
    $(".contact-form").on("click", function() {
            $("body").animate({"scrollTop": window.scrollY+300}, 700);
                return false;
    });
});

最佳答案

iJup 你好。您正在使用空 block 尝试将主 block 内容放在中间(2-8-2)。而不是那样做，你应该尝试使用这样的东西......
<div class="col-xs-8 col-xs-offset-2">

或者，

看看这个 Fiddle ，我在这里使用的是将您的按钮和表单置于两个 block 的中心...

.centerthis {
  position: absolute;
  left: 0;
  right: 0;
  margin: auto;  
}

您会看到我删除了您代码中的那些间隔 div block 。
希望这可以帮助。 

<div class="contactform" style="display:none">
    <div class="container">
        <div class="row text-center">

            <div class="col-md-8 text-center centerthis">
                <form class="form" id="form1">

                <p class="name">
                <input name="name" type="text" class="validate[required,custom[onlyLetter],length[0,100]] feedback-input" placeholder="Name" id="name" />
                </p>

                <p class="email">
                <input name="email" type="text" class="validate[required,custom[email]] feedback-input" id="email" placeholder="Email" />
                </p>

                <p class="text">
                <textarea name="text" class="validate[required,length[6,300]] feedback-input" id="comment" placeholder="Comment"></textarea>
                </p>

                <div class="row text-center">
                <div class="submit">
                <input type="submit" value="SEND" id="button-blue"/>
                <div class="ease"></div>
                </div>
                </div>
                </form>
            </div>

        </div>
    </div>
</div>

关于html - 通过 Bootstrap 列在页面上居中 <divs，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/32626836/

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