最近开始学习 CSS ,感觉入门容易,但是上手很麻烦,尤其是兼容性的问题,根本是两眼一摸黑。
在网上下载了一个简单的 PSD 博客模板,对照着这个模板开始练手,切图,写 html ,就着 firebug 添加 css 代码。
好不容易完成了首页,就发现了两个问题:
原有效果图:

出现的问题:
 

求解惑.....另外,我代码中如果有什么地方需要改进的也麻烦告知一下....谢谢!
html 代码如下:
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Blog</title>
    <link rel="stylesheet" href="style.css">
</head>
<body>
<div class="wrap">
<div class="header">
    <div class="top">
        <img src="images/top.jpg">
    </div>
    <div class="nav">
        <ul>
            <li><a href="#" class="active">Home</a></li>
            <li><a href="#">Home</a></li>
            <li><img src="images/tx.png" alt="Something about Shawn"></li>
            <li><a href="#">Home</a></li>
            <li><a href="#">Home</a></li>
        </ul>
    </div>
</div>
<div class="inner">
    <div class="subtitle">
        <p>Hello everybody, Welcome to my Blog!</p>
        <span class="hr"></span>
    </div>
    <div class="content">
        <div class="post">
            <div class="date">
                <span>21 Jul</span>
            </div>
            <div class="desc">
            <span class="cat">cat : <a href="#">Diary</a> , <a href="#">Persional</a></span>
            <span class="likes">136 Likes</span>
            <span class="comments">21 Comments</span>
            </div>
            <div class="postcontent">
                <h3><a href="#">First blog title here!</a></h3>
                <p>This is Photoshop's version of Learning the python. You can try mandy way to do this hard thing. The Beginner's Guide to SEO has been read over 3 million times and provides comprehensive information you need to get on the road to professional quality Search Engine Optimization.</p>
                <span class="readmore">Read More</span>
            </div>
        </div>
        <div class="post">
            <div class="date">
                <span>21 Jul</span>
            </div>
            <div class="desc">
            <span class="cat">cat : <a href="#">Diary</a> , <a href="#">Persional</a></span>
            <span class="likes">136 Likes</span>
            <span class="comments">21 Comments</span>
            </div>
            <div class="postcontent">
                <h3><a href="#">First blog title here!</a></h3>
                <p>This is Photoshop's version of Learning the python. You can try mandy way to do this hard thing. The Beginner's Guide to SEO has been read over 3 million times and provides comprehensive information you need to get on the road to professional quality Search Engine Optimization.</p>
                <span class="readmore">Read More</span>
            </div>
        </div>
        <div class="post">
            <div class="date">
                <span>21 Jul</span>
            </div>
            <div class="desc">
            <span class="cat">cat : <a href="#">Diary</a> , <a href="#">Persional</a></span>
            <span class="likes">136 Likes</span>
            <span class="comments">21 Comments</span>
            </div>
            <div class="postcontent">
                <h3><a href="#">First blog title here!</a></h3>
                <p>This is Photoshop's version of Learning the python. You can try mandy way to do this hard thing. The Beginner's Guide to SEO has been read over 3 million times and provides comprehensive information you need to get on the road to professional quality Search Engine Optimization.</p>
                <span class="readmore">Read More</span>
            </div>
        </div>
        <div class="post">
            <div class="date">
                <span>21 Jul</span>
            </div>
            <div class="desc">
            <span class="cat">cat : <a href="#">Diary</a> , <a href="#">Persional</a></span>
            <span class="likes">136 Likes</span>
            <span class="comments">21 Comments</span>
            </div>
            <div class="postcontent">
                <h3><a href="#">First blog title here!</a></h3>
                <p>aaThis is Photoshop's version of Learning the python. You can try mandy way to do this hard thing. The Beginner's Guide to SEO has been read over 3 million times and provides comprehensive information you need to get on the road to professional quality Search Engine Optimization.</p>
                <span class="readmore">Read More</span>
            </div>
        </div>
        </div>
        <div class="load_more">
            <span>Load More</span>
        </div>
        <div class="footer">
            <p>Copyrights (c) <a href="#">Fikristudios</a> 2016</p>
        </div>
</div>
</div>
</body>
</html>
CSS 代码:
* { margin:0; padding:0; }
body {
    font-size:14px;
    color:#bcbcbc;
    max-width: 1200px;
    width: 100%;
    margin:0 auto;
    background: #3eb3a5;
}
ul,ol {
    list-style-type:none;
}
a { text-decoration: none; color: #bcbcbc;}
a:hover, a:active,.active {
    color:#3eb3a5;
}
.clearfix {
    clear:both;
    overflow: hidden;
    width: 100%;
}
.wrap {
    background-color: #fff;
}
.top {
    height: 350px;
}
.nav {
    height: 85px;
    border-bottom: 1px solid #dfdfdf;
    font-size: 24px;
    font-weight: bold;
    line-height: 85px;
    text-align: center;
}
.nav li {
    display: inline-block;
}
.nav li a {
    padding: 10px;
    margin-left: 10px;
}
.nav li a:hover, .nav li a:active, .active{
    border-bottom: 5px solid #afafaf;
}
.nav img {
    vertical-align: top;
    position: relative;
    width: 220px;
    text-align: center;
    top: -93px;
}
.inner {
    margin:0 auto;
    width: 940px;
}
.subtitle {
    text-align: center;
    font-size: 14px;
    margin-top: 90px;
    padding-bottom: 30px;
    color: #a0a0a0;
}
.subtitle .hr {
    display: block;
    text-align: center;
    width: 32px;
    height: 3px;
    margin:10px auto 5px;
    border-top: 1px solid #a0a0a0;
    border-bottom: 1px solid #a0a0a0;
}
.date {
    display: block;
    width: 123px;
    height: 123px;
    background: url(images/date.png) no-repeat;
    font-size:24px;
    float: left;
    text-align: center;
    line-height: 123px;
    margin-right: 12px;
}
.date span {
    color: #3eb3a5;
    font-weight: bold;
}
.desc, .postcontent {
    margin-left: 140px;
    word-break: break-all;
}
.desc {
    padding-bottom: 16px;
    border-bottom: 1px solid #efefef;
    vertical-align: top;
}
.cat, .likes {
    border-right: 1px solid #ebebeb;
    padding-right: 20px
}
.likes {
    display: inline-block;
    padding-left: 40px;
    background: url(images/tb.png) no-repeat 16px -14px;
}
.comments {
    margin-left: 20px;
    padding-left: 20px;
    display: inline-block;
    background: url(images/tb.png) no-repeat 0 0 ;
    height: 14px;
}
.post {
    margin-top: 38px;
    background: url(images/line.png) repeat-x bottom;
}
.cat a {
    color:#3eb3a5;
}
.postcontent p{
    line-height: 27px;
}
.postcontent h3 {
    font-size: 30px;
    line-height: 70px;
}
.postcontent h3 a {
    color: #272727;
}
.readmore {
    display: inline-block;
    font-size: 16px;
    font-weight: bold;
    color: #3eb3a5;
    margin-top: 24px;
    margin-bottom: 30px;
    padding: 5px 0;
    border-bottom: 1px solid #e1e1e1;
}
.load_more {
    background-color: #3eb3a5;
    text-align: center;
    color: #ffffff;
    height: 53px;
    width: 142px;
    border-radius: 5px;
    margin: 48px auto 108px;
}
.load_more span {
    font-size: 18px;
    font-weight: bold;
    text-align: center;
    line-height: 53px;
}
.footer {
    text-align: center;
    font-size: 18px;
    font-style: normal;
    padding-bottom: 48px;
}
.footer a {
    color: #3eb3a5;
}
|  |      1loading      2016-07-12 21:47:19 +08:00 via Android 也许你应该说一下你打算兼容到哪个版本的 ie 。 | 
|      2seoguess OP | 
|      3BMW      2016-07-12 22:43:32 +08:00 建议不考虑 ie10 以下版本 | 
|      4seoguess OP 现有的代码在 firefox 与 chrome 中导航是正常的,就是小图标有点靠上。 | 
|      5Losses      2016-07-12 22:56:08 +08:00 不要考虑 ie10 以下了……对自己好一点…… | 
|  |      6ChiangDi      2016-07-12 22:59:38 +08:00 初学 css 就不要考虑 IE 了,直接用 edge | 
|      7hard2reg      2016-07-12 23:04:23 +08:00 原来 PSD 还能转网页啊!请问用的是什么工具? | 
|  |      8BearTher      2016-07-12 23:12:10 +08:00 ...过去刚开始学 css 的时候 从不考虑兼容性 也从不拿到别的浏览器里去跑  直接火狐一路刚 图标单独定义边距试试 | 
|      10seoguess OP | 
|  |      11Mac      2016-07-12 23:37:23 +08:00 这年头还有人和自己过不去想去兼容 IE... | 
|  |      13bibizhang      2016-07-13 00:19:49 +08:00 你还不到考虑兼容性的时候 | 
|  |      14zoxobo      2016-07-13 01:02:28 +08:00 via Android 但说.links ,调整图标和文字平行对齐 1:可以调整图片嵌套的坐标点 background: url(images/tb.png) no-repeat 16px -14px;这里的 16px 和-14px 修改大小试试,目的是让图片向下一点。 2:修改文字行高试试,目的向上移动文字 | 
|      16seoguess OP | 
|  |      17loading      2016-07-13 07:51:02 +08:00 via Android 就你用了 display: inline-block; 还想兼容 xp 的 ie6? 去查一下 ie 对 css2 的支持情况再说吧~ | 
|      18jhaohai      2016-07-13 09:10:11 +08:00 via iPhone 不要考虑 IE ,世界上只有三个浏览器 chrome , firefox , edge | 
|  |      19realpg PRO IE 直接让他故意非常差的不兼容 甚至额外做一些劣化 让 IE 完全无法正常使用 我就是这么做的 顺便给个提示 请使用 chrome 搜狗 360 浏览器访问 然后基本上那些 XP 用户都会切换成搜狗或者 360 | 
|      20seoguess OP | 
|  |      21davin      2016-07-13 09:52:19 +08:00 你这是有多爱 span ... 通篇的都是 span 。刚开始学,不建议做这么复杂的东西。可以先拆分成多个模块,比如图像布局、菜单横排、竖排布局、图文混排等等,然后把这些组合起来体会下。其次,了解下语义化,代码的复用 /耦合,以及为了团队配合, CSS 的命名规则和图像类型的命名规则( ico_xxx / bg_xxx / btn_xxx )... 这些看似不重要的内容。 | 
|  |      22begoingtodo      2016-07-13 10:24:08 +08:00 | 
|      23askaday      2016-07-13 10:29:42 +08:00 .nav img{vertical-align:-170px;} | 
|      24seoguess OP @davin 好的,谢谢你的建议。之所以使用 span 是因为我不想要把同一行的内容放在 div 中,之前我有跟着网上的一些教程做过多个模块的代码,这次也是第一次尝试弄一整个网页。文件命名的时候我确实是想到什么就放什么,后面是得注意一下啦。 @begoingtodo @askaday 谢谢! | 
|  |      25wilddog      2016-07-13 13:08:15 +08:00 对自己好一点,放弃 IE 也不是不可以 |