代码示例:(标识:css_form_button)
<!DOCTYPE html>
<html>
<head>
<style> 
input[type=button], input[type=submit], input[type=reset] {
  background-color: #4CAF50;
  border: none;
  color: white;
  padding: 16px 32px;
  text-decoration: none;
  margin: 4px 2px;
  cursor: pointer;
}
</style>
</head>
<body>

<h1>有样式的输入按钮</h1>

<input type="button" value="按钮">
<input type="reset" value="重置">
<input type="submit" value="提交">

</body>
</html>
运行结果: