很可能很明显，我对 html 和 css 很陌生。我最近开始使用它们(连同 django)，并且一直在玩我自己的代码并从各种教程中借用片段。产生你在下面看到的科学怪人的缺点之一是神秘的异常现象往往会从清澈的蓝天中显现出来。最近和令人困惑的是我的一些 div(顶部的两个)之间的微小空白。我到处寻找罪魁祸首，但收效甚微。如果有人可以看一看并提供建议，那就太好了。
这是我的 HTML:
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title> BTracker </title>
<link rel="stylesheet" type="text/css" href="test.css">
<link rel="stylesheet" href="http://fonts.googleapis.com/css?family=Lobster" />
</head>
<body>
<div id="page-container">
<div style="background:red">
div1
</div>
<div>
<ul id="navTop">
<li>Hi, <strong><a href="/UserName/">UserName</a></strong></li>
<li><a href="/help/">Help</a></li>
<li><a href="/account/settings/">Settings</a></li>
<li class="last"><a href="/account/logout/">Logout</a></li>
</ul>
</div>
<div id="main-nav">
<nav>
<ul class="nav">
<li><a href="/home/" class="homeIcon">Home</a></li>
<li><a href="/news/">News</a></li>
<li><a href="/about/">About Us</a></li>
<li><a href="/services/">Services</a></li>
<li><a href="/contact/">Contact</a></li>
</ul>
</nav>
</div>
<div id="header">
</div>
<div id="sidebar-a">
<div class="padding">
Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Nullam gravida enim ut risus.
Praesent sapien purus, ultrices a, varius ac, suscipit ut, enim. Maecenas in lectus.
Donec in sapien in nibh rutrum gravida. Sed ut mauris. Fusce malesuada enim vitae lacus
euismod vulputate. Nullam rhoncus mauris ac metus. Maecenas vulputate aliquam odio.
Duis scelerisque justo a pede. Nam augue lorem, semper at, porta eget, placerat eget,
purus. Suspendisse mattis nunc vestibulum ligula. In hac habitasse platea dictumst.
</div>
</div>
<div id="content">
<div class="padding">
<h2><img src="path/to/about.gif" width="150" alt="About" /></h2>
<p><strong>Lorem ipsum</strong> dolor sit amet, consectetuer adipiscing elit. Nullam gravida enim ut risus.
Praesent sapien purus, ultrices a, varius ac, suscipit ut, enim. Maecenas in lectus.
Donec in sapien in nibh rutrum gravida.</p>
<p>Sed ut mauris. Fusce malesuada enim vitae lacus
euismod vulputate.</p>
<h2><img src="/path/to/contact.gif" width="250" alt="Contact Us" /></h2>
<p>Phone: (07) 867 5309<br />
Fax: (07) 867 5309<br />
Email: <a href="mailto:foo@bar.com">foo@bar.com</a><br />
P.O Box: 12345 Timbuck, Too</p>
<p><a href="#">More contact informationż/a></p>
</div>
</div>
<div id="footer">
<div id="altnav">
<a href="#">About</a> -
<a href="#">Services</a> -
<a href="#">Portfolio</a> -
<a href="#">Contact Us</a> -
<a href="#">Terms of Trade</a>
</div>
Copyright BlahBlah Webservices
<br>
Powered by Yours Truely
</div>
</div>
</body>
</html>
这是我的CSS:
/*------------------------------------------------------------------
[ STYLE.CSS ] Main Stylesheet
--------------------------------------------------------------------
[Table of Contents]
1. Link colors
2. MAIN STYLES
2.a Tags defaults
2.b Page Container
2.b Navigations
/*------------------------------------------------------------------
1. Link colors
------------------------------------------------------------------*/
a:link {color:white;} /* unvisited link */
a:visited {color:blue;} /* visited link */
a:hover {color:grey;} /* mouse over link */
a:active {color:yellow;} /* selected link */
/*------------------------------------------------------------------
2. MAIN STYLES
General definitions
--------------------------------------------------------------------
/*-------------------------------
2.a Tags defaults
-------------------------------*/
html {
background: url("/path/to/background.jpg") no-repeat center center fixed;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
}
body {
font-family: Helvetica, Arial, Verdana, Sans-serif;
}
h1 {
margin: 0;
padding: 0;
float: right;
margin-top: 35px;
padding-right: 200px;
}
div {margin:0;padding:0;}
/*-------------------------------
2.b Container
-------------------------------*/
#page-container {
width: 1000px;
margin: auto;
/* color: #979731; */
background: black;
}
/*-------------------------------
2.c Navigation
-------------------------------*/
#navTop {
text-align: right;
height:32px;
background: rgba(151, 111, 48, .4);
background:violet;
}
#navTop li {
display: inline-block;
list-style-type: none;
border-right: 1px solid #d1d1d1;
height: 8px;
line-height:8px;
padding: 0 5px;
}
#navTop li.last { border: 0; }
#main-nav {
height: 85px;
background: blue;
text-align: center;
}
.nav{
/* Affects the UL element */
overflow: hidden;
display: inline-block;
}
.nav li{
/* Specifying a fallback color and we define CSS3 gradients for the major browsers: */
background-color: #f0f0f0;
background-image: -webkit-gradient(linear,left top, left bottom,from(#fefefe), color-stop(0.5,#f0f0f0), color-stop(0.51, #e6e6e6));
background-image: -moz-linear-gradient(#fefefe 0%, #f0f0f0 50%, #e6e6e6 51%);
background-image: -o-linear-gradient(#fefefe 0%, #f0f0f0 50%, #e6e6e6 51%);
background-image: -ms-linear-gradient(#fefefe 0%, #f0f0f0 50%, #e6e6e6 51%);
background-image: linear-gradient(#fefefe 0%, #f0f0f0 50%, #e6e6e6 51%);
border-right: 1px solid rgba(9, 9, 9, 0.125);
/* Adding a 1px inset highlight for a more polished efect: */
box-shadow: 1px -1px 0 rgba(255, 255, 255, 0.6) inset;
-moz-box-shadow: 1px -1px 0 rgba(255, 255, 255, 0.6) inset;
-webkit-box-shadow: 1px -1px 0 rgba(255, 255, 255, 0.6) inset;
position:relative;
float: left;
list-style: none;
}
.nav li:after{
/* This creates a pseudo element inslide each LI */
content:'.';
text-indent:-9999px;
overflow:hidden;
position:absolute;
width:100%;
height:100%;
top:0;
left:0;
z-index:1;
opacity:0;
/* Gradients! */
background-image:-webkit-gradient(linear, left top, right top, from(rgba(168,168,168,0.5)),color-stop(0.5,rgba(168,168,168,0)), to(rgba(168,168,168,0.5)));
background-image:-moz-linear-gradient(left, rgba(168,168,168,0.5), rgba(168,168,168,0) 50%, rgba(168,168,168,0.5));
background-image:-o-linear-gradient(left, rgba(168,168,168,0.5), rgba(168,168,168,0) 50%, rgba(168,168,168,0.5));
background-image:-ms-linear-gradient(left, rgba(168,168,168,0.5), rgba(168,168,168,0) 50%, rgba(168,168,168,0.5));
background-image:linear-gradient(left, rgba(168,168,168,0.5), rgba(168,168,168,0) 50%, rgba(168,168,168,0.5));
/* Creating borders with box-shadow. Useful, as they don't affect the size of the element. */
box-shadow:-1px 0 0 #a3a3a3,-2px 0 0 #fff,1px 0 0 #a3a3a3,2px 0 0 #fff;
-moz-box-shadow:-1px 0 0 #a3a3a3,-2px 0 0 #fff,1px 0 0 #a3a3a3,2px 0 0 #fff;
-webkit-box-shadow:-1px 0 0 #a3a3a3,-2px 0 0 #fff,1px 0 0 #a3a3a3,2px 0 0 #fff;
/* This will create a smooth transition for the opacity property */
-moz-transition:0.25s all;
-webkit-transition:0.25s all;
-o-transition:0.25s all;
transition:0.25s all;
}
/* Treating the first LI and li:after elements separately */
.nav li:first-child{
border-radius: 4px 0 0 4px;
}
.nav li:first-child:after,
.nav li.selected:first-child:after{
box-shadow:1px 0 0 #a3a3a3,2px 0 0 #fff;
-moz-box-shadow:1px 0 0 #a3a3a3,2px 0 0 #fff;
-webkit-box-shadow:1px 0 0 #a3a3a3,2px 0 0 #fff;
border-radius:4px 0 0 4px;
}
.nav li:last-child{
border-radius: 0 4px 4px 0;
}
/* Treating the last LI and li:after elements separately */
.nav li:last-child:after,
.nav li.selected:last-child:after{
box-shadow:-1px 0 0 #a3a3a3,-2px 0 0 #fff;
-moz-box-shadow:-1px 0 0 #a3a3a3,-2px 0 0 #fff;
-webkit-box-shadow:-1px 0 0 #a3a3a3,-2px 0 0 #fff;
border-radius:0 4px 4px 0;
}
.nav li:hover:after,
.nav li.selected:after,
.nav li:target:after{
/* This property triggers the CSS3 transition */
opacity:1;
}
.nav:hover li.selected:after,
.nav:hover li:target:after{
/* Hides the targeted li when we are hovering on the UL */
opacity:0;
}
.nav li.selected:hover:after,
.nav li:target:hover:after{
opacity:1 !important;
}
/* Styling the anchor elements */
.nav li a{
color: #5d5d5d;
display: inline-block;
font: 20px/1 Lobster,Arial,sans-serif;
padding: 12px 35px 14px;
position: relative;
text-shadow: 1px 1px 0 rgba(255, 255, 255, 0.6);
z-index:2;
text-decoration:none !important;
white-space:nowrap;
}
.nav a.homeIcon{
background:url("/path/to/home.png") no-repeat center center;
display: block;
overflow: hidden;
padding-left: 12px;
padding-right: 12px;
text-indent: -9999px;
width: 16px;
}
#header {
height: 130px;
background:red;
}
#sidebar-a {
float: right;
width: 500px;
line-height:25px;
background:purple;
}
#sidebar-a .padding {
padding: 25px;
}
#content {
margin-right: 500px;
line-height: 25px;
background: orange;
}
#content .padding {
padding: 25px;
}
#content h2 {
margin: 0;
padding: 0;
padding-bottom: 15px;
padding-left: 150px
}
#content p {
margin: 0;
padding: 0;
padding-bottom: 15px;
}
#footer {
clear: both;
height: 66px;
border-top:1px solid #efefef;
padding: 13px 25px;
line-height:20px
font-family: Tahoma, Arial, Helvetica, Sans-serif;
font-size: 16px;
color: white;
background: green;
}
#footer #altnav {
width: 400px;
float: right;
text-align: right;
}
.hidden {
display: none;
}
最佳答案
具有属性 inline-block 的元素将表现为内联(因此得名)，因此遇到的任何空白都将被视为空格。例如:
<div></div><div></div>
将以不同方式呈现
<div></div>
<div></div>
您可以使用 HTML 解决此问题，如下所示:
要么将所有元素放在同一行，即
<div>
// CONTENT
</div><div>
// CONTENT
</div><div>
// CONTENT
</div>
或者使用 HTML 注释去掉空格
<div>
//CONTENT
</div><!--
--><div>
//CONTENT
</div>
您可以使用 CSS 解决此问题，如下所示:
在父级上设置属性font-size: 0，即
parent {
display: inline-block;
font-size: 0
}
parent * {
font-size: 12px
}
或者在父级上设置属性zoom: 1，即
parent {
display: inline-block;
zoom: 1
}
关于css - 一些 div 之间的空白(但不是其他的)，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/13432070/