/** 本程序由站长可乐原创搭建**/

.ban{
width:80%;
height:auto;
margin:10px auto;
}

img{
 width:100%;
align:center;
}

a {
    text-decoration: none;//去掉下划线
    color: inherit;
    -webkit-user-select: none;
    -moz-user-select: none;
    user-select: none;
    -webkit-appearance: none;
    -webkit-text-size-adjust: none;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    -webkit-touch-callout: none;
    border-bottom: none;//去掉下边框（用text-decoration: none;没有用是时候加上）；
    display: block;
    width: 100%;
    height: 40px;
}
a:link{ color:#000}/* 链接默认为红色 */ 
a:hover{ color:#000}/* 鼠标悬停黑色 */ 
a:active{ color:#03F}/* 鼠标点击与释放时蓝色 */ 
a:visited{ color:#000}/* 访问过为粉红 */ 

      .black_overlay{ 
           display: none; 
            position: absolute; 
            top: 0%; 
           left: 0%; 
            width: 100%; 
            height: 100%; 
            background-color: black;`
            z-index:1001; 
            -moz-opacity: 0.8; 
            opacity:.80; 
            filter: alpha(opacity=88); 
float:right;
        } 
        .white_content { 
            display: none; 
            position: absolute; 
            top: 5%; 
            left: 35%; 
            width: 20%; 
            border: 5px solid orange; 
            background-color: white; 
            z-index:1002; 
            overflow: auto; 
        }