各位同学，有问题希望帮忙解决。谢谢！
注册用户的时候，比如写密码，在它的文本框后面会出现提示密码的格式是怎样的（比如它说 6-12位的数字和字母组成）这样是怎么实现的？还有的是文本框前面会有个*号，表明它必须要填，这个又是怎么实现的呢？ 可能明白我的意思，会的同学帮帮忙！谢谢！
个回答
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- 倾昀
- 2016-04-08 15:45:38
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>文本图标对齐与定位二三事</title>
<style>
body { margin: 0; font: 14px/1.4 "Microsoft YaHei"; background-color: #EDEFF0; }
a { color: #50B6E5; }
.constr { width: 1200px; margin-left: auto; margin-right: auto; }
.regist-head { height: 60px; line-height: 60px; padding-left: 30px; background-color: #be3948; color: #fff; font-size: 18px; }
.regist-body { min-height: 400px; padding: 100px 0; background-color: #fff; }
.regist-main { width: 600px; margin-left: auto; margin-right: auto; }
.regist-group { margin-top: 20px; overflow: hidden; }
.regist-label { width: 70px; padding-top: 10px; float: left; }
.regist-cell { display: table-cell; *display: inline-block; }
.regist-input { height: 18px; line-height: 18px; width: 260px; padding: 10px 5px; margin: 0 10px 0 0; border: 1px solid #d0d6d9; vertical-align: top; }
.regist-code-input { width: 130px; }
.regist-btn { display: inline-block; width: 160px; line-height: 40px; background-color: #39b94e; color: #fff; text-align: center; text-decoration: none; }
.regist-btn:hover { background-color: #33a646; }
.icon-warn { display: inline-block; width: 20px; height: 21px; background: url(http://img.mukewang.com/5453084a00016ae300120012.gif) no-repeat center; }
.regist-star { position: absolute; margin-left: -1em; font-family: simsun; color: #f30; }
.regist-remark { position: absolute; line-height: 21px; padding-top: 9px; color: #666; }
.regist-warn { padding-left: 20px; color: #be3948; }
.regist-warn > .icon-warn { position: absolute; margin-left: -20px; }
</style>
</head>
<body>
<div class="constr">
<div class="regist-head">注册</div>
<div class="regist-body">
<div class="regist-main">
<div class="regist-group">
<label class="regist-label"><span class="regist-star">*</span>登录邮箱</label>
<div class="regist-cell">
<input type="email" class="regist-input"><span class="regist-remark regist-warn">
<i class="icon-warn"></i>邮箱格式不准确（演示）
</span>
</div>
</div>
<div class="regist-group">
<label class="regist-label"><span class="regist-star">*</span>登录密码</label>
<div class="regist-cell">
<input type="password" class="regist-input"><span class="regist-remark">
请输入6-16位密码，区分大小写，不能使用空格
</span>
</div>
</div>
<div class="regist-group">
<label class="regist-label"><span class="regist-star">*</span>用户昵称</label>
<div class="regist-cell">
<input type="password" class="regist-input">
</div>
</div>
<div class="regist-group">
<label class="regist-label">手机号码</label>
<div class="regist-cell">
<input type="tel" class="regist-input">
</div>
</div>
<div class="regist-group">
<label class="regist-label"><span class="regist-star">*</span>验 证 码</label>
<div class="regist-cell">
<input class="regist-input regist-code-input"><img src="http://img.mukewang.com/545308540001678401500040.jpg">
</div>
</div>
<div class="regist-group">
<label class="regist-label"> </label>
<div class="regist-cell">
<input type="checkbox" checked><label>我已阅读并同意<a href="##">慕课协议</a>。</label>
<p>
<a href="javascript:" class="regist-btn">立即注册</a>
</p>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
-
- 倾昀
- 2016-04-08 15:50:12
可以去听下 CSS深入理解之absolute 很好解决了这个问题
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- 风雪之隅
- 2016-04-06 16:12:08
随便打开一个可以注册的网站，自己去看源代码。
-
- 慕粉3130641
- 2016-04-06 15:51:15
解决了吗？求分享！
-
- 慕斯蛋糕啊
- 2016-04-06 15:49:04
啊啊啊
-
- hk1201
- 2016-04-06 15:47:15
你用angularjs 的话可以用ng-if ng-show实现
*好像是一个样式 一般是用<span class=''></span>来实现的