Coppy đoạn code dưới đây và paste vào trước thẻ đóng body của footer
<!-- Contact bottom --> <div class="contact-cs"> <div class="zalo"> <a href="https://zalo.me/0974438896" target="_blank"> <span class="tooltip-cs">Chat zalo</span> <img src="http://nhatweb.vn/wp-content/uploads/2023/04/Zalo.svg"/> </a> </div> <div class="messenger"> <a href="https://www.facebook.com/messages/t/215427065761277" target="_blank"> <span class="tooltip-cs">Chat messenger</span> <img src="http://nhatweb.vn/wp-content/uploads/2023/04/messenger.png"/> </a> </div> <div class="whatapp"> <a href="https://wa.me/+84974438896" target="_blank"> <span class="tooltip-cs">Chat whatapp</span> <img src="http://nhatweb.vn/wp-content/uploads/2023/04/whatsapp.png"/> </a> </div> <div class="call"> <a href="tel:+84974438896" target="_blank"> <span class="tooltip-cs">Liên hệ chúng tôi</span> <img src="http://nhatweb.vn/wp-content/uploads/2023/04/call.png"/> </a> </div> </div> <style> .contact-cs img { width: 45px; border-radius: 50%; border: solid 2px #fff; box-shadow: 0px 1px 2px rgb(0 0 0 / 8%), 0px 1px 3px rgb(0 0 0 / 5%); margin-bottom: 10px; background:#fff; } .contact-cs { position: fixed; z-index: 2; display: block; bottom: 90px; right: 23px; float: right !important; } .contact-cs a { float: right; display: flex; align-items: center; } .contact-cs a:hover { scale: 1.1; } span.tooltip-cs { background: #000000eb; padding: 10px 15px; color: #fff; font-size: 12px; border-radius: 5px; line-height: 12px; margin-bottom: 10px; position: absolute; width: max-content; right: 50px; display:none; } span.tooltip-cs:after { content: ""; width: 8px; height: 8px; background: #090701; right: -4px; position: absolute; transform: rotate(45deg); } a:hover span.tooltip-cs { display:inherit; } </style> <!--End contact bottom-->