.side-box {
    width: 77px;
    float: left;
    position: fixed;
    right: 5px;
    bottom: 50px;
    z-index:1000;
}

.box-line{
    height: 75px;
    text-align: center;
    color: #00a0e9;
    background: #ffffff;
    border: 1px solid gainsboro;
    border-radius: 5px 5px 0 0;
}

.box-phone{
    height: 75px;
    text-align: center;
    color: #00a0e9;
    background: #ffffff;
    border: 1px solid gainsboro;
    position: relative;
}

.item-phone{
    display: none;
    border-radius: 3px;
    position: absolute;
    width: 150px;
    bottom:18px;
    height: 30px;
    background: #ffffff;
    left: -165px;
    border: 1px solid gainsboro;
    line-height: 30px;
    font-size: 20px;
}

.item-phone:before {
    content: '';
    width: 0;
    height: 0;
    position: absolute;
    top: 7px;
    right: -17px;
    border: solid 8px;
    border-color: transparent transparent transparent gainsboro;
    font-size: 0;
}

.item-phone:after {
    content: '';
    width: 0;
    height: 0;
    position: absolute;
    top: 7px;
    right: -16px;
    border: solid 8px;
    border-color: transparent transparent transparent white;
    font-size: 0;
}

.box-wechat{
    height: 75px;
    text-align: center;
    color: #00a0e9;
    background: #ffffff;
    border: 1px solid gainsboro;
}

.item-wechat{
    display: none;
    border-radius: 3px;
    position: absolute;
    width: 200px;
    bottom: 18px;
    height: 200px;
    background: #ffffff;
    left: -215px;
    border: 1px solid gainsboro;
    line-height: 30px;
    font-size: 20px;
}

.item-wechat:after {
    content: '';
    width: 0;
    height: 0;
    position: absolute;
    top: 94px;
    right: -16px;
    border: solid 8px;
    border-color: transparent transparent transparent white;
    font-size: 0;
}

.item-wechat:before {
    content: '';
    width: 0;
    height: 0;
    position: absolute;
    top: 94px;
    right: -17px;
    border: solid 8px;
    border-color: transparent transparent transparent gainsboro;
    font-size: 0;
}

.box-back{
    height: 75px;
    text-align: center;
    color: #00a0e9;
    background: #ffffff;
    border: 1px solid gainsboro;
    border-radius: 0 0 5px 5px;
}