CSS3制作凤凰网导航

今天在群讨论一个导航制作（凤凰网娱乐），看过同学发来的gif动画图，想将此图转画为CSS3导航，动手试了一下，还是可以实现的。在这个实例中中要运用了以下知识点：box-shadow,CSS制作图形，旋转，动画。感兴趣的同学可以来围观。

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HTML Code

<ul id="nav">
  <li><a href="#">Home</a></li>
  <li><a href="#">Blog</a></li>
  <li class="expansion">
    <a href="#">Tutorial</a>
    <ul class="sub-menu">
      <li><a href="#">css</a></li>
      <li><a href="#">css3</a></li>
      <li><a href="#">html</a></li>
      <li><a href="#">html5</a></li>
      <li><a href="#">jquery</a></li>
      <li><a href="#">javascript</a></li>
      <li><a href="#">php</a></li>
    </ul>
  </li>
  <li><a href="demo2.html">Demo</a></li>
  <li><a href="#">Contact</a></li>
</ul>

CSS Code

*{
  margin: 0;
  padding: 0;
}
body {
  font-size: 12px;
  font-family: 'Covered By Your Grace', cursive;
  padding: 100px;
}
.container {
  width: 960px;
  margin: 0 auto;
}
/*menu style start*/
#nav {
  width: 960px;
  margin: 50px auto;
  background: #8c319c;
  color: #fff;
  position:relative;
  box-shadow: -1px 0 0 #732184,-2px 0 0 #732184,-3px 0 0 #732184,-4px 0 0 #732184,-5px 0 0 #732184,-6px 0 0 #732184,-7px 0 0 #732184,-8px 0 0 #732184,-9px 0 0 #732184,-10px 0 0 #732184;
  border-top: 10px solid #000;
  float: left;
  width: 100%;
}
#nav::before {
  content:"";
  border: 5px solid #732184;
  border-color:#732184 #732184 #cecece #cecece;
  position: absolute;
  bottom: 0;
  left: -10px;
  width: 0;
  height: 0;
  display: block;
  z-index:2;
}
#nav::after {
  content:"";
  width: 10px;
  height: 9px;
  background: #000;
  position: absolute;
  top: -9px;
  left: -10px;
  display: block;
} 
#nav li {
  float: left;
  display: inline;
}
#nav a {
  display: block;
  float: left;
  padding: 10px 15px;
  text-decoration: none;
  text-transform: uppercase;
  color: #fff;
  font-weight: bold;
  font-size: 24px;
  box-shadow: 2px 0 0 rgba(255,255,255,0.5);
  -webkit-transition: all 0.5s ease-in .218s;
  -moz-transition: all 0.5s ease-in .0038s;
  -o-transition: all 0.5s ease-in .0038s;
  transition: all 0.5s ease-in .0038s;
}
#nav .sub-menu {
  position: absolute;
  left: 0;
  top: 100%;
  background: #eff7f7;
  right: 0;
  box-shadow: -1px 0 0 #cecece,-2px 0 0 #cecece,-3px 0 0 #cecece,-4px 0 0 #cecece,-5px 0 0 #cecece,-6px 0 0 #cecece,-7px 0 0 #cecece,-8px 0 0 #cecece,-9px 0 0 #cecece,-10px 0 0 #cecece;
}
#nav .sub-menu::before {
  content:"";
  border: 5px solid #cecece;
  border-color:#cecece #cecece #fff #fff;
  position: absolute;
  bottom: 0;
  left: -10px;
  width: 0;
  height: 0;
  display: block;
  z-index:2;
}
		
#nav .sub-menu a {
  color: #000;
  font-size: 20px;
  font-weight: normal;
}
#nav a:hover,
#nav .expansion a {
  background: #eff7f7;
  color: #000;
  box-shadow: 1px 0 0 #a5adad, 2px 0 0 #b5bdbd,3px 0 0 #a5adad;
  padding-top: 14px;
  margin-top: -4px;
}
#nav .sub-menu a {
  background: none;
  box-shadow: none;
  padding-top: 10px;
  margin-top: 0;
}
#nav .sub-menu a:hover {
  color: rgb(140, 49, 156);
}

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接下来在给大家提供馨儿同学做的同等效果的DEMO代码。大家可以对比一下制作思路与实现方法

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HTML 结构

<div class="nav">
  <ul>
<li class="active">娱乐首页</li>
<li>明星</li>
<li>电视</li>
<li>电影</li>
<li>音乐</li>
<li>图片</li>
<li>星座</li>
<li>演出</li>
<li>凤凰网·非常道</li>
<li>官网</li>
</ul>
<div class="sNav"><a href="#">这是子导航</a></div>
</div>

CSS Code:

body,ul,li{padding: 0; margin:0;}
body{ margin:100px}
.nav{position: relative; border-top: 10px solid #000;width: 960px; margin: 0 auto;}
.nav:after,.nav:before{ display: block; content: ""; position: absolute; left: 0; width: 10px}
.nav:before{ background: #8c319c; height: 25px; -webkit-transform:skew(0,50deg); top: 10px; }
.nav:after{ background: #cecece; height: 35px; -webkit-transform:skew(0,50deg); top: 30px}
.nav ul{ background:#8c319c; height: 30px;list-style-type: none; line-height: 30px; padding: 0 10px}
.nav li{ display: inline-block;padding: 0 15px; border-right:1px solid #a552ad}
.nav li.active{ background:#eff7f7; border-right:3px solid #b5bdbd; position: relative; top: -5px; height: 35px;}
.nav .sNav{ background:#eff7f7; line-height: 40px; margin-left: 10px}
.nav .sNav a{ color: #000; text-decoration: none; margin: 0 10px}

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如需转载，烦请注明出处：https://www.fedev.cn/demo/create-ent-ifeng-menu-with-css3.html

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