五个圆环在页面居中分布,固定在页面中部,随浏览器页面缩放,代码如下:
<!DOCTYPE html>
<head>
<meta charset="utf-8">
<title>demo</title>
<style type="text/css">
*{
margin: 0px;
padding: 0px;
}
.palt{
position: fixed;
left: 50%;
top: 50%;
width: 380px;
height: 180px;
margin-left: -190px;
margin-top: -90px;
}
.circle1,
.circle2,
.circle3,
.circle4,
.circle5{
position: absolute;
width: 100px;
height: 100px;
border:10px solid black;
border-radius: 50%;
}
.circle1{
border-color: red;
left: 0px;
top: 0px;
}
.circle2{
border-color: green;
left: 130px;
top: 0px;
z-index: 1;
}
.circle3{
border-color: blue;
left: 260px;
top: 0px;
}
.circle4{
border-color: yellow;
left: 65px;
top: 60px;
}
.circle5{
border-color: black;
left: 195px;
top: 60px;
}
</style>
</head>
<body>
<div class="palt">
<div class="circle1"></div>
<div class="circle2"></div>
<div class="circle3"></div>
<div class="circle4"></div>
<div class="circle5"></div>
</div>
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</body>
运行结果如图: