/*?? css*/
* {margin:0; padding:0;}
a {color: #666; text-decoration: none; cursor: pointer;}
li, dt, dd {list-style: none;}

/*??*/
.container{width: 100%; min-height:240px; padding: 20px 0;}

/*?? ??*/
.pop_button{width:150px; height:40px; margin: 40px auto; 
background:skyblue; text-align: center; border-radius: 7px;}
.pop_button a{display: block; color: #333;line-height: 40px; font-weight: bold;}

/*???*/
.layer_pop_txt{display: none; position: fixed; width: 100%; height: 100%; 
top: 0; left: 0; background: rgba(0,0,0,0.7)}
.layer_pop_txt .pop_content{position:absolute; width:70%; top:10%; left:15%; 
z-index: 20; background: #fff; text-align: center; padding: 30px 0;}
.layer_pop_txt .close_btn{position: absolute; top: 10px; right: 15px; font-size: 20px;}