index.css
/* index.css是用来美化首页的 */
* {
margin: 0;
padding: 0;
/* 內减模式 */
box-sizing: border-box;
}
li {
list-style: none;
}
a {
text-decoration: none;
}
.clearfix:before,.clearfix:after {
content:"";
display:table;
}
.clearfix:after {
clear:both;
}
body{
background-color: #f3f5f7;
}
.wrapper{
width: 1200px;
margin: 0 auto;
}
.header{
height: 42px;
background-color: pink;
margin: 30px;
}
h1 {
float: left;
}
/* 导航 */
.nav {
float: left;
margin-left: 70px;
height: 42px;
}
.nav li{
float: left;
margin-right: 26px;
}
.nav li a{
display: block;
padding: 0 9px;
height: 42px;
line-height: 42px;
}
.nav li a:hover{
border-bottom: 2px solid #00a4ff;
}
/* 搜索 */
.search {
float: left;
margin-left: 59px;
width: 412px;
height: 40px;
border: 1px solid #00a4ff;
}
.search input {
float: left;
padding-left: 20px;
/* 左右加一起的尺寸要小于等于410 */
width: 360px;
height: 38px;
border: 0;
}
/* 控制placeholder的样式 */
.search input::placeholder {
font-size: 14px;
color: #bfbfbf;
}
.search button {
float: left;
width: 50px;
height: 40px;
background-image: url(../images/btn.png);
border: 0;
}index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="https://www.ctyun.cn/portal/link.html?target=.%2Fcss%2Findex.css">
</head>
<body>
<div class="header wrapper">
<h1>
<a><img src="./images/logo.png"></a>
</h1>
<div class="nav">
<ul>
<li><a href="https://www.ctyun.cn/portal/link.html?target=%23">首页</a></li>
<li><a href="https://www.ctyun.cn/portal/link.html?target=%23">课程</a></li>
<li><a href="https://www.ctyun.cn/portal/link.html?target=%23">职业规划</a></li>
</ul>
</div>
<diV class="search">
<input type="text" placeholder="输入关键词"><button></button>
</diV>
</div>
</body>
</html>运行结果
