为什么top部分的字被遮住了
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>zuoye2</title>
<style type="text/css">
*{margin: 0;
padding: 0;
font-family: "微软雅黑";}
body{height:2000px;}
.header{width: 100%;
height: 100px;
background: #07cbc9;
overflow: hidden;
zoom:1;
box-sizing: border-box;
position: fixed;
top: 0;
z-index: 999;
}
.header ul{float: right;
list-style: none;
padding-right: 100px;
}
.header ul li{float: left;}
.header img{padding-top: 26px;
padding-left: 120px;}
.header ul li a{text-decoration: none;
color: #fff;height:100px;
line-height: 100px;
display: block;
padding: 0 20px;
font-size: 20px;}
.header ul li a:hover{background: #000;}
.banner{width:100%;
height:700px;
position: relative;
z-index: 10;
top: 100px;}
.banner img{width:100%;
height:100%;
}
.banner .banner-layer{width:100%;
height:700px;
position: absolute;
top: 0px;
opacity: 0.5;
background: black;
z-index: 11;}
.your-Name,.your-Phone,.your-Mail{width:500px;
height:40px;}
.comment{width:500px;
height:100px;}
.message{width:700px;
height:700px;
text-align: center;
position: absolute;
top: 0;
z-index: 12;
left: 50%;
margin-left: -350px;
padding-top: 150px;
box-sizing: border-box;}
.your-Name,.your-Phone,.your-Mail,.comment,.send{background-color: transparent;
/*font-family: "微软雅黑";*/
color: #fff;}
.send{width:200px;
height:40px;}
.your-Name:hover,.your-Phone:hover,.your-Mail:hover,.comment:hover{border-color:#07cbc9;}
.send:hover{border:none;
background:#07cbc9; }
.about{width:100%;}
</style>
</head>
<body>
<!-- 顶部 -->
<div class="header">
<!-- logo -->
<img src="images/logo.png">
<!-- nav区 -->
<ul>
<li><a href="#">HOME</a></li>
<li><a href="#">ABOUT</a></li>
<li><a href="#">GALLERY</a></li>
<li><a href="#">FACULTY</a></li>
<li><a href="#">EVENTS</a></li>
<li><a href="#">CONTACT</a></li>
</ul>
</div>
<!-- banner区 -->
<div class="banner">
<!-- 背景图片 -->
<img src="images/banner3.jpg">
<!-- 遮罩区 -->
<div class="banner-layer"></div>
<!-- 表单区 -->
<div class="message">
<form>
<input type="text" name="your Name" placeholder="your Name" class="your-Name"><br/><br/>
<input type="text" name="your Phone" placeholder="your Phone" class="your-Phone"><br/><br/>
<input type="text" name="your Mail" placeholder="your Mail" class="your-Mail"><br/><br/>
<textarea placeholder="Write Your Comment Here" class="comment"></textarea><br/><br/>
<input type="submit" name="submit" value="SEND MESSAGE" class="send"><br/>
</form>
</div>
</div>
<!-- about区 -->
<div class="about">
<!-- 上 -->
<div class="top">
<h2>ABOUT</h2>
<hr/>
<div class="word">Lorem lqsum is simply dummy text of the printing and typesetting<br/>industry.lorem ispum has been the industry's standard dummy<br/>text ever since the 1500s</div>
</div>
</div>
</body>
</html>0
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你好同学 , 需要具体情况具体分析 , 一般定位使用top ,left这些属性 .但是在本代码中 ,因为使用top值改变位置 , 会把后面的元素遮住 , 所以才改为margin-top .让元素的间距把后面的元素挤下去 .
希望解答了你的疑惑 , 祝学习愉快 !
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