分类:
前端
code:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="https://cdn.staticfile.org/twitter-bootstrap/4.3.1/css/bootstrap.min.css">
<title>Register</title>
<style type="text/css">
/*表单样式*/
.myformdiv {
background-color: lightcoral;
opacity: 0.85;
}
/*垂直居中，div上边界距离窗口上边的距离为窗口高度的50%，
实际上此时div内容整体已经偏下，再把整个身子往上移动一半即可
并针对不同浏览器进行兼容。
*/
.col-center-block {
position: absolute;
top: 50%;
-webkit-transform: translateY(-50%);
-moz-transform: translateY(-50%);
-ms-transform: translateY(-50%);
-o-transform: translateY(-50%);
transform: translateY(-50%);
}
</style>
</head>
<body>
<!-- 在外层添加一个div，把行内容居中，添加.row .justify-content-center -->
<div class="row justify-content-center ">
<!-- 下面是要居中的div，添加.col-center-block -->
<div class="col-center-block col-sm-4 col-xs-4 jumbotron myformdiv ">
<h2>Welcome To register!</h2>
<div>
<form class="bs-example bs-example-form" role="form">
<div>
<span><b>username</b></span>
<input type="text" placeholder="username">
</div>
<br>
<div>
<span class="input-group-addon "><b>password</b></span>
<input type="password" placeholder="password">
</div>
<br>
<div>
<span class="input-group-addon "><b>email</b></span>
<input type="email" placeholder="email">
</div>
<br>
<div style="margin-top: 2px;">
<button type="button" class="btn text-center btn-outline-light btn-lg"><a
href="#">注册</a></button>
</div>
</form>
</div>
</div>
</div>
</body>
</html>评价