/*!
 * Start Bootstrap - website v1.0.0 (https://uuchat.io)
 * Copyright 2013-2018 uuchat
 * Licensed under MIT (https://github.com/BlackrockDigital/uuchat.io/blob/master/LICENSE)
 */.main{position:relative;height:65vh;text-align:center;color:#fff;overflow:hidden}.main .uu-btn{margin:0 5px;padding:10px 20px;color:#fff;background:#408af8;font-size:16px;font-weight:700;box-shadow:0 1px 3px 0 rgba(0,0,0,.4)}.main .uu-btn:last-child{color:#408af8;background:rgba(255,255,255,.9)}.main .uu-btn:hover{opacity:.95;color:rgba(255,255,255,.9);transform:translateY(-1px);box-shadow:0 7px 14px rgba(50,50,93,.1),0 3px 6px rgba(0,0,0,.08)}.main .uu-btn:last-child:hover{color:#408af8}.mask{position:absolute;display:flex;align-items:center;padding:20px 0;width:100%;height:100%;background:rgba(85,187,241,.9)}.mask h1{font-size:44px}.main .sub-title{margin:30px auto;font-size:20px}@media screen and (max-width:640px){.main{background:#39afef}.main img{display:none}.mask{background:rgba(255,255,255,0)}.mask h1{font-size:24px}.main .sub-title{margin:30px auto;font-size:16px;text-align:left}}