Buat Widget Obrolan Whatsapp Dengan Banyak Nomor dan Akun

/* CSS Multiple Whatsapp Chat */
#whatsapp-chat{position:fixed;background:#fff;width:350px;border-radius:10px;box-shadow:0 1px 15px rgba(32,33,36,.28);bottom:90px;right:30px;overflow:hidden;z-index:99;animation-name:showchat;animation-duration:1s;transform:scale(1)}
a.netralidshow-chat{background:linear-gradient(to right top,#6f96f3,#164ed2);color:#fff;position:fixed;z-index:98;bottom:25px;right:30px;font-size:15px;padding:10px 20px;border-radius:30px;box-shadow:0 1px 15px rgba(32,33,36,.28)}
a.netralidshow-chat i{transform:scale(1.2);margin:0 10px 0 0}.header-chat{background:linear-gradient(to right top,#6f96f3,#164ed2);color:#fff;padding:20px}
.header-chat h3{margin:0 0 10px}.header-chat p{font-size:14px;line-height:1.7;margin:0}
.info-avatar{position:relative}.info-avatar img{border-radius:100%;width:50px;float:left;margin:0 10px 0 0}
.info-avatar:before{content:'\f232';z-index:1;font-family:"Font Awesome 5 Brands";background:#23ab23;color:#fff;padding:4px 5px;border-radius:100%;position:absolute;top:30px;left:30px}
a.informasi{padding:20px;display:block;overflow:hidden;animation-name:showhide;animation-duration:2.5s}
a.informasi:hover{background:#f1f1f1}.info-chat span{display:block}#get-label,span.chat-label{font-size:12px;color:#888}
#get-nama,span.chat-nama{margin:5px 0 0;font-size:15px;font-weight:700;color:#222}#get-label,#get-nama{color:#fff}span.my-number{display:none}
.netralid-msg{color:#444;padding:20px;font-size:12.5px;text-align:center;border-top:1px solid #ddd}
textarea#chat-input{border:none;font-family:'Arial',sans-serif;width:100%;height:20px;outline:none;resize:none}
a#send-it{color:#555;width:40px;margin:-5px 0 0 5px;font-weight:700;padding:8px;background:#eee;border-radius:10px}
.first-msg{background:#f5f5f5;padding:30px;text-align:center}
.first-msg span{background:#e2e2e2;color:#333;font-size:14.2px;line-height:1.7;border-radius:10px;padding:15px 20px;display:inline-block}
.start-chat .netralid-msg{display:flex}#get-number{display:none}a.close-chat{position:absolute;top:5px;right:15px;color:#fff;font-size:30px}
@keyframes showhide{from{transform:scale(.5);opacity:0}}@keyframes showchat{from{transform:scale(0);opacity:0}}
@media screen and (max-width:480px){#whatsapp-chat{width:auto;left:5%;right:5%;font-size:80%}}
.hide{display:none;animation-name:showhide;animation-duration:1.5s;transform:scale(1);opacity:1}
.show{display:block;animation-name:showhide;animation-duration:1.5s;transform:scale(1);opacity:1}

<div id='whatsapp-chat' class='hide'>
<div class='header-chat'>
<div class='head-home'><h3>Hello!</h3>
<p>Click one of our representatives below to chat on WhatsApp or send us an email to netralid@gmail.com</p></div>
<div class='get-new hide'><div id='get-label'></div><div id='get-nama'></div></div></div>
<div class='home-chat'>
<!-- Info Contact Start -->
<a class='informasi' href='javascript:void' title='Chat Whatsapp'>
<div class='info-avatar'><img src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi__YMg_-JiIv1sEa2Dj_WGQWP_c8dmPY8vkmGri_j-xCe_lyKM_pJPdOdM3MnvDI66KGg4lmhrtZ6sDOw7H6nXB1Kk_5gtT611LNinPGv_o-HvpYrUAw8gw2-lQ5qSFzyQN-EWGbuCllk/s70/supportmale.png'/></div>
<div class='info-chat'>
<span class='chat-label'>Support</span>
<span class='chat-nama'>Customer Service 1</span>
</div><span class='my-number'>628875820426</span>
</a>
<!-- Info Contact End -->
<!-- Info Contact Start -->
<a class='informasi' href='javascript:void' title='Chat Whatsapp'>
<div class='info-avatar'><img src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh57vUUGUTyf0OwDGkEjIsceibbvhs2-SH-Zt7LWVqY3-JJS2SM4SKfKvbVjgHSP4mV9PjXhBcPLZIsfoLUSz7yp7miGFetF6hzbo-RhKI8c-Zxa-RhaUGQRN8YOkOhy-QvfFpsGh6eHiM/s70/supportfemale.png'/></div>
<div class='info-chat'>
<span class='chat-label'>Sales</span>
<span class='chat-nama'>Customer Service 2</span>
</div><span class='my-number'>6222222222</span>
</a>
<!-- Info Contact End -->
<div class='netralid-msg'>Call us to <b>+628875820426</b> from <i>0:00hs a 24:00hs</i></div></div>
<div class='start-chat hide'>
<div class='first-msg'><span>Hello! What can I do for you?</span></div>
<div class='netralid-msg'><textarea id='chat-input' placeholder='Write a response' maxlength='120' row='1'></textarea>
<a href='javascript:void;' id='send-it'>Send</a></div></div>
<div id='get-number'></div><a class='close-chat' href='javascript:void'>×</a>
</div>
<a class='netralidshow-chat' href='javascript:void' title='Show Chat'><i class='fab fa-whatsapp'></i>How can I help you?</a>

<script type='text/javascript'>
//<![CDATA[
/* Whatsapp Chat Widget */
$(document).on("click","#send-it",function(){var a=document.getElementById("chat-input");if(""!=a.value){var b=$("#get-number").text(),c=document.getElementById("chat-input").value,d="https://web.whatsapp.com/send",e=b,f="&text="+c;if(/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent))var d="whatsapp://send";var g=d+"?phone="+e+f;window.open(g, '_blank')}}),$(document).on("click",".informasi",function(){document.getElementById("get-number").innerHTML=$(this).children(".my-number").text(),$(".start-chat,.get-new").addClass("show").removeClass("hide"),$(".home-chat,.head-home").addClass("hide").removeClass("show"),document.getElementById("get-nama").innerHTML=$(this).children(".info-chat").children(".chat-nama").text(),document.getElementById("get-label").innerHTML=$(this).children(".info-chat").children(".chat-label").text()}),$(document).on("click",".close-chat",function(){$("#whatsapp-chat").addClass("hide").removeClass("show")}),$(document).on("click",".netralidshow-chat",function(){$("#whatsapp-chat").addClass("show").removeClass("hide")});
//]]>
</script>

Perlu diketahui, font widget ini secara otomatis akan mengikuti font default dari template yang Anda gunakan. Pastikan Anda telah menginstal font khusus dan juga CSS Eksternal seperti Awesome Fonts dan juga jQuery.

<link href='https://use.fontawesome.com/releases/v5.8.2/css/all.css' rel='stylesheet' type='text/css'/>

<script src='https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js'></script>