html{height: 100%;background: #0094d1;}
body{cursor:pointer;background:url(../../image/sign/welcome/back.png) center center no-repeat;height:100%;}
.logotxt{ position: absolute; top: 45%; margin-top: -275px; width: 100%;background: url(../../image/sign/welcome/biglogo.png) center 0 no-repeat;padding-top:300px;color:#fff;font-size:42px;font-weight: bold;text-align:center;line-height: 60px;opacity:0;filter:alpha(opacity=0);}
.btn{    height: 47px; display: block; margin: 40px auto;font-size:20px; font-weight:600;width: 724px; text-align: center; line-height: 47px; color: #fff; background:url(../../image/sign/welcome/btn.png);}
.btn:hover{color:#fff;}
.content,.box{  margin: 0 auto; height: 100%;position:absolute;left:0;right:0;top:0;bottom:0;overflow:hidden;}
.content label{background:#fff;border-radius: 50%;position:absolute;opacity: 0;box-shadow:0 0 3px 1px #fff;right:105%;}
.copyright{    position: fixed;bottom: 0;width: 100%;text-align: center;padding: 10px;}