css3实现高端搜索框

国瑞前端：如果拥有一款好看又好用的输入框呢，接下来我就带领大家一同探究一下：

css3实现高端搜索框

代码如下:css

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* {
margin: 0;
padding: 0;
}
.searchBox {
margin: 50px auto 0;
padding: 20px 50px;
width: 600px;
box-sizing: border-box;
border-radius: 5px;
background: #D7B086;
}
.searchBox form {
position: relative;
overflow: hidden;
}
.searchBox form::after,.searchBox form::before {
content: '鼠标移入搜索';
position: absolute;
top: 0;
left: 0;
line-height: 44px;
text-align: center;
width: 100%;
height: 50%;
background: #000;
color: rgba(255,255,255,.5);
font-size: 20px;
overflow: hidden;
z-index: 1;
transition: all .3s;
}
/*.searchBox form::before {
display: none;
}*/
.searchBox form::after {
top: auto;
bottom: 0;
line-height: 0;
}
.searchBox form:hover::before {
top: -50%;
}

.searchBox form:hover::after {
bottom: -50%;
}

.searchBox form input[type="search"] {
width: 100%;
height: 44px;
font-size: 16px;
padding: 0 60px 0 10px;
}
.searchBox form input[type="button"] {
position: absolute;
right: 5px;
top: 5px;
width: 50px;
height: 34px;
}

html代码如下：

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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>国瑞前端</title>
<meta name="keywords" content=""/>
<meta name="description" content=""/>
<link rel="stylesheet" href="css/searchBox.css">
</head>
<body>
<div class="searchBox">
<form action="">
<input type="search" placeholder="请输入搜索的内容">
<input type="button" value="搜索">
</form>
</div>
</body>
</html>