1. 程式人生 > >用bootstrap做一個背景可輪轉的登入介面

用bootstrap做一個背景可輪轉的登入介面

用bootstrap做登入註冊頁面

效果圖(由於2M的限制效果圖大小不一致)

這裡寫圖片描述這裡寫圖片描述
這裡寫圖片描述
html程式碼
水平居中利用bootstrap的網格系統,offset-3向右移動3格.(網格系統中預設12個格)

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>login</title>

    <script src="https://cdn.bootcss.com/jquery/2.2.4/jquery.min.js">
</script> <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.bootcss.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet"> <script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js"></script
>
<link rel="stylesheet" href="css/style.css"> </head> <body> <div class="container"> <div class="form row"> <div class="form-horizontal col-md-offset-3" id="login_form"> <h3 class="form-title">LOGIN</h3> <div
class="col-md-9">
<div class="form-group"> <i class="fa fa-user fa-lg"></i> <input class="form-control required" type="text" placeholder="Username" id="username" name="username" autofocus="autofocus" maxlength="20"/> </div> <div class="form-group"> <i class="fa fa-lock fa-lg"></i> <input class="form-control required" type="password" placeholder="Password" id="password" name="password" maxlength="8"/> </div> <div class="form-group"> <label class="checkbox"> <input type="checkbox" name="remember" value="1"/>記住我 </label> </div> <div class="form-group col-md-offset-9"> <button type="submit" class="btn btn-success pull-right" name="submit">登入</button> </div> </div> </div> </div> </div> </body> </html>

css部分
用css3的動畫的 @keyframes 規則,製作輪轉圖。

body{
    background: url("../img/1.jpg");
    animation-name:myfirst;
    animation-duration:12s;
    /*變換時間*/
    animation-delay:2s;
    /*動畫開始時間*/
    animation-iteration-count:infinite;
    /*下一週期迴圈播放*/
    animation-play-state:running;
    /*動畫開始執行*/
}
@keyframes myfirst
{
    0%   {background:url("../img/1.jpg");}
    34%  {background:url("../img/2.jpg");}
    67%  {background:url("../img/3.jpg");}
    100% {background:url("../img/1.jpg");}
}
.form{background: rgba(255,255,255,0.2);width:400px;margin:120px auto;}
/*陰影*/
.fa{display: inline-block;top: 27px;left: 6px;position: relative;color: #ccc;}
input[type="text"],input[type="password"]{padding-left:26px;}
.checkbox{padding-left:21px;}