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HTML

              
                <h1>Flatsome.xyz Chào 500 anh em nhé   👋 </h1>
<h2>Anh em có rãnh Ghé Blog tớ tại <a href="https://flatsome.xyz/?s=Li%C3%AAn+h%E1%BB%87" target="blank">Flatsome.xyz</a>

<div class="nav-social PC d-md-block d-none">
    <ul>
                    <li><a href="tel:0988123126" target=""><img src="https://zulihome.vn/wp-content/uploads/2022/12/Call.png"><br>Tổng đài</a></li>
                    <li><a href="https://www.facebook.com/messages/t/dongnaminfotech" target="_blank"><img src="https://zulihome.vn/wp-content/uploads/2022/12/messenger-2.png"><br>Messenger</a></li>
                    <li><a href="https://zalo.me/2024508797424936513" target="_blank"><img src="https://zulihome.vn/wp-content/uploads/2022/12/Zalo.png"><br>Zalo</a></li>
                <li class="register">
            <a href="#lepopup-Form-dk-1" rel="nofollow"><img src="https://zulihome.vn/wp-content/themes/zulihome/assets/img/envelope.svg"><br>Đăng ký</a>
        </li>
        <li class="to-top-pc">
            <a href="#" id="back-top" rel="nofollow" style="display: none;"><img src="https://zulihome.vn/wp-content/themes/zulihome/assets/img/BackOnTop.png"><br>Back top</a>
        </li>
    </ul>
</div>

<!-- mobile-->
<div class="bottom-contact-mobile mobile d-md-none">
    <ul>
                    <li><a href="tel:0814621462">
            <img src="https://zulihome.vn/wp-content/uploads/2022/12/icon-phone-mobile.png"><br>
            <span>Gọi điện </span></a></li>
                    <li><a href="sms:0925045760">
            <img src="https://zulihome.vn/wp-content/uploads/2022/12/icon-sms-mobile.png"><br>
            <span>Nhắn tin</span></a></li>
                    <li><a href="https://zalo.me/2024508797424936513">
            <img src="https://zulihome.vn/wp-content/uploads/2022/12/icon-zalo-mobile.png"><br>
            <span>Chat zalo</span></a></li>
                    <li><a href="https://m.me/zulihome.com.vn">
            <img src="https://zulihome.vn/wp-content/uploads/2022/12/icon-mesenger-mobile.png"><br>
            <span>Messenger</span></a></li>
                <li class="to-top-pc">
            <a href="#" id="back-to-top" rel="nofollow"><img src="https://zulihome.vn/wp-content/themes/zulihome/assets/img/BackOnTop.png"><br><span>Back top</span></a>
        </li>
    </ul>
</div>
              
            
!

CSS

              
                .d-md-none {
    display: none;
}
.nav-social {
	position: fixed;
	right: 5px;
	background: #fff;
	border-radius: 5px;
	width: auto;
	z-index: 150;
	top: 220px;
	padding: 10px 0;
	border: 1px solid #f2f2f2;
}
.nav-social ul {
        margin: 0;
        padding: 0;
        list-style: none;
}
	.nav-social ul li {
			border-bottom: 1px solid #d6d6d6;
			padding-bottom: calc( .6em - 5px );
            margin-bottom: .6em;
			list-style: none;
			text-align: center; }
            .nav-social ul li:last-child {
                padding-bottom: 0;
                margin-bottom: 0;
                border-bottom: 0;
            }
.nav-social ul li img {
                max-width: 25px;
                max-height: 20px;
                object-position: center;
                object-fit: contain;
            }
.nav-social ul li a {
				padding: 5px 12px 5px 12px;
				display: block;
				text-align: center;
				font-size: 11px;
				line-height: 15px;
				color: #000;
				font-weight: 400;
				max-width: 80px;
				max-height: 60px;
				text-decoration: none; }
.nav-social ul li img {
					margin-bottom: 10px;
				}

@media only screen and (max-width: 48em) {
/*************** ADD MOBILE ONLY CSS HERE  ***************/
.PC {
display: none;
}
.bottom-contact-mobile {
	display: block;
	position: fixed;
	bottom: 0;
	background: white;
	width: 100%;
	z-index: 99;
	box-shadow: 2px 1px 9px #dedede;
	border-top: 1px solid #eaeaea;}
.bottom-contact-mobile ul {
        display: flex;
        justify-content: center;
        margin: 0;
        padding: 0; }
.bottom-contact-mobile ul li {
			width: 20%;
            flex-basis: 20%;
			list-style: none;
			text-align: center;
			font-size: 13.5px; }
.bottom-contact-mobile ul li img {
				width: 25px;
                height: 20px;
                object-position: center;
                object-fit: contain;
				margin-top: 10px;
				margin-bottom: 3px;
			}
.bottom-contact-mobile ul li span {
				color: #000;
				font-size: 12px;
			}
}


/*--- ko cần dùng cái này ---*/
body {
  font-family: system-ui;
  background: #f06d06;
  color: white;
  text-align: center;
}
              
            
!

JS

              
                
              
            
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999px

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