1.直接上代码
<html>
<head>
<style type="text/css">
.dot {
position: absolute;
top: 50%;
margin-left: -5px;
margin-top: -5px;
width: 10px;
height: 10px;
border-radius: 100%;
background: #ffff;
box-shadow: 0 2px 4px 0 rgba(0, 0, 0, .2);
}
</style>
</head>
<body>
<h1 class="important">css绘制小圆点</h1>
<div class="dot" style=" background: red;" ></div>
</body>
</html>
2.实现效果
