.chat-button{-webkit-box-pack:center;-ms-flex-pack:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;background-image:url(../images/43.png);background-repeat:no-repeat;background-size:contain;color:#fff;cursor:pointer;display:flex;font-size:18px;font-weight:700;height:50px;justify-content:center;left:-74px;line-height:20px;position:fixed;text-align:center;text-decoration:none;text-shadow:1px 0 2px 0#000;top:45%;-webkit-transform:rotate(270deg);transform:rotate(270deg);width:196px;z-index:777}.chat-button:hover{background-image:url(../images/44.png);background-repeat:no-repeat;margin-left:2px}