参考pink老师的教程
效果图

知识点
- 行内元素转换为行内块元素(目的是使得宽高可设置)
- 背景图片改变
- 标签选择
代码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>五彩按钮</title>
<style>
.nav a {
display: inline-block;
width: 120px;
height: 58px;
background-color: aqua;
text-align: center;
line-height:50px;
text-decoration: none;
color: #ffffff;
font-family: "隶书";
font-size: 25px;
}
.nav .bg1 {
background-image: url("images/bg1.png");
}
.nav .bg1:hover {
background-image: url("images/bg11.png");
}
</style>
</head>
<body>
<div class="nav">
<a href="#" class="bg1">导航按钮</a>
</div>
</body>
</html>