html,body{
    padding: 0;
    margin: 0;
    overflow: auto;
}
.tc_cover{
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 999;
    background: rgba(0,0,0,.7);
    filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#B2000000,endColorstr=#B2000000);
}
.tc_cover > div{
    width: 283px;
    height: 293px;
    position: absolute;
    margin: auto;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("../images/t_img1.png") no-repeat;
    background-size: cover;
}
.tc_cover > div > a{
    display: block;
    width: 168px;
    height: 46px;
    position: absolute;
    top: auto;
    left: 60px;
    right: auto;
    bottom: 0;
}
.tc_cover > div > div.t_close{
    width: 33px;
    height: 33px;
    position: absolute;
    top: -10px;
    right: 0;
    background: url("../images/t_close.png");
    background-size: cover;
    transition: transform .2s;
    -webkit-transition: transform .2s;
}
.tc_cover > div > div.t_close:hover{
    cursor: pointer;
    transform: scale(1.1,1.1);
    -webkit-transform: scale(1.1,1.1);
}
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.yx_shade{
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 19891016;
}
.yx_tips_txt{
   min-width: 100px;
   background-color: #000;
   filter: alpha(opacity=60);
   background-color: rgba(0, 0, 0, .6);
   position: absolute;
   line-height: 24px;
   padding: 20px;
   text-align: center;
   color: #fff;
   transition: all .3s;
   -moz-transition: all .3s;
   -webkit-transition: all .3s;
   -o-transition: all .3s;
   font-size:16px;
   border-radius: 10px;
   overflow: auto;
   left:50%;
   top:50%;
   transform: translate(-50%,-50%);
   -webkit-transform: translate(-50%,-50%);
   opacity: 0;
}
.yx_tips_txt.show{
    opacity: 1;
}