#phone {
    position: fixed;
    bottom: 100px;
    right: 10px;
    z-index: 9999;
    font-size: 16px;
    background: rgba(255, 255, 255, 1);
    /*background: url(../images/yh_icon.png);*/
    width: 40px;
    height: 40px;
    text-align: center;
    color: #fff;
    display: none;
    -webkit-border-radius: 40px;
    -moz-border-radius: 40px;
    -ms-border-radius: 40px;
    -o-border-radius: 40px;
    border-radius: 50%;
}

#phone img{

    
    width: 40px;
    height: 40px;

}