Quick contact HTML + CSS

<style>
.phone-mobile {display: none;}
.quick-contact {
    position: fixed;
    left: 13px;
    background: #fff;
    border-radius: 5px;
    width: auto;
    z-index: 150;
    bottom: 50px;
    padding: 10px 0;
    border: 1px solid #f2f2f2;
}
.quick-contact ul {list-style: none;padding: 0;margin: 0;}
.quick-contact ul li {list-style: none!important;}
.quick-contact ul>li a {
    border:none;
    padding: 3px;
    display: block;
    border-radius: 5px;
    text-align: center;
    font-size: 10px;
    line-height: 15px;
    color: #515151;
    font-weight: 700;
    max-width: 72.19px;
    max-height: 54px;
    text-decoration: none;
}
.quick-contact ul>li .chat_animation{display:none}
.quick-contact ul>li a i.ticon-heart {
    background: url(https://i.imgur.com/cjYw9lk.png) no-repeat;
    background-size: contain;
    width: 36px;
    height: 36px;
    display: block;
}
.quick-contact ul>li a i.ticon-zalo-circle2 {
    background: url(https://i.imgur.com/617RkhE.png) no-repeat;
    background-size: contain;
    width: 36px;
    height: 36px;
    display: block;
}.quick-contact li .button {
    background: transparent;
}.quick-contact ul>li a i.ticon-angle-up {
    background: url(https://i.imgur.com/inoTbxx.png) no-repeat;
    background-size: contain;
    width: 36px;
    height: 36px;
    display: block;
}.quick-contact ul>li a i {
    width: 33px;
    height: 33px;
    display: block;
    margin: auto;
}.quick-contact ul li .button .btn_phone_txt {
    position: relative; top:35px;
    font-size: 10px;
    font-weight: bold;
    text-transform: none;
}
.quick-contact ul li .button .phone_animation i {
    display: inline-block;
    width: 27px;
    font-size: 26px;
    margin-top: 12px;
}.quick-contact ul>li a.chat_animation svg {
    margin: -13px 0 -20px;
}
.quick-contact ul>li a i.ticon-messenger {
    background: url(https://i.imgur.com/grAPPGF.png) no-repeat;
    background-size: contain;
    width: 36px;
    height: 36px;
    display: block;
}.quick-contact ul li .button .phone_animation i {
    display: inline-block;
    width: 27px;
    font-size: 26px;
    margin-top: 12px;
}
.quick-contact ul>li a i.ticon-chat-sms {
    background: url(https://i.imgur.com/2lBeRJf.jpg) no-repeat;
    background-size: contain;
    width: 38px;
    height: 36px;
    display: block;
}
.quick-contact ul>li a i.icon-phone-w {
    background: url(https://i.imgur.com/rMV8G99.png) no-repeat;
    background-size: contain;}
.quick-contact ul li .button .btn_phone_txt {
    position: relative;
}
@media only screen and (max-width: 600px){
    .quick-contact li .chat_animation{display:block !Important}
     
    .quick-contact li .button .phone_animation {box-shadow: none;
        position: absolute;
        top: -16px;
        left: 50%;
        transform: translate(-50%,0);
        width: 50px;
        height: 50px;
        border-radius: 100%;
        background: #6cb917;
        line-height: 15px;
        border: 2px solid white;
    }
    .quick-contact ul>li a{padding:0; margin:0 auto}
    .quick-contact {
        background: white;
        width: 100%; border-radius:0;
        color: #fff;
        height: 60px;
        line-height: 50px;
        position: fixed;
        bottom: 0;
        left: 0;
        z-index: 999;
        padding: 5px;
        margin: 0;
        box-shadow: 0 4px 10px 0 #000;
    }
    .quick-contact li {
        float: left;
        width: 20%;
        list-style: none;
        height: 50px;
    }   
    .phone-mobile{display:block !important}
}
</style>
<div class="quick-contact">
    <ul>
        <li>
            <a href="https://maps.google.com/maps?ll=21.004998,105.827619&z=16&t=m&hl=en&gl=US&mapclient=embed&q=10%20Ng.%2095%20P.%20Ch%C3%B9a%20B%E1%BB%99c%20Kh%C6%B0%C6%A1ng%20Th%C6%B0%E1%BB%A3ng%20%C4%90%E1%BB%91ng%20%C4%90a%20H%C3%A0%20N%E1%BB%99i" rel="nofollow" target="_blank"><i class="ticon-heart"></i>Tìm đường</a>
        </li>
        <li><a href="https://zalo.me/0123456789" rel="nofollow" target="_blank"><i class="ticon-zalo-circle2"></i>Chat Zalo</a></li>
        <li class="phone-mobile">
            <a href="tel:0123456789" rel="nofollow" class="button">
                <span class="phone_animation animation-shadow">
                    <i class="icon-phone-w" aria-hidden="true"></i>
                </span>
                <span class="btn_phone_txt">Gọi điện</span>
            </a>
        </li>
        <li>
            <a href="https://www.messenger.com/t/nguyenlap" rel="nofollow" target="_blank"><i class="ticon-messenger"></i>Messenger</a>
        </li>
        <li>
            <a href="sms:0123456789" class="chat_animation"><i class="ticon-chat-sms" aria-hidden="true" title="Nhắn tin sms"></i>
            Nhắn tin SMS</a>
        </li>
        <li class="to-top-pc">
            <a href="#" rel="nofollow">
                <i class="ticon-angle-up" aria-hidden="true" title="Quay lên trên"></i>
            </a>
        </li>
    </ul>
</div>