How to Install Whatsapp Live Chat Button on Blog

1. Go to -  Blogger >> Theme >> Edit HTML .
2. Use CTRL+F To make searching BOX
3. Search code and Find </b:skin> or </style>
4. Copy the code below and paste it right above it. 

Step 1 : CSS

/* Chatbox Whatsapp */
:root {
  --warna-background: #4dc247; /* Chat Button Background Color */
  --warna-bg-chat: #f0f5fb;
  --warna-icon: #fff; /* chat icon Color */
  --warna-text: #505050;
  --warna-text-alt: #989b9f;
  --lebar-chatbox: 320px;
}
.sticky-button{position:fixed;background-color:var(--color-background);bottom:20px;left:20px;width:55px;height:55px;border-radius:50px;box-shadow:0 2px 5px 0 rgba(0,0,0,.1);z-index:20;overflow:hidden;}
.sticky-button a, .sticky-button label{display:flex;align-items:center;width:55px;height:55px;-webkit-transition:all .3s ease-out;transition:all .3s ease-out;}
.sticky-button a svg, .sticky-button label svg{margin:auto;fill:var(--color-icon)}
.sticky-button label svg.svg-2{display:none}
.sticky-chat{position:fixed;bottom:70px;left:20px;width:var(--wide-chatbox);-webkit-transition:all .3s ease-out;transition:all .3s ease-out;
z-index:21;opacity:0;visibility:hidden;line-height:normal}
.sticky-chat .chat-content{border-radius:10px;background-color:#fff;box-shadow:0 2px 5px 0 rgba(0,0,0,.05);overflow:hidden}
.sticky-chat .chat-header{position:relative;display:flex;align-items:center;padding:15px 20px;background-color:var(--color-background);overflow:hidden}
.sticky-chat .chat-header:after{content:'';display:block;position:absolute;bottom:0;right:0;width:70px;height:65px;background:rgba(0,0,0,.040);border-radius:70px 0 5px 0;}
.sticky-chat .chat-header svg{width:35px;height:35px;flex:0 0 auto;fill:var(--color-icon)}
.sticky-chat .chat-header .title{padding-left:15px;font-size:14px;font-weight:600;font-family:'Roboto', sans-serif;color:var(--warna-icon)}
.sticky-chat .chat-header .title span{font-size:11px;font-weight:400;display:block;line-height:1.58em;margin:0;}
.sticky-chat .chat-text{display:flex;flex-wrap:wrap;margin:25px 20px;font-size:12px;color:var(--color-text)}
.sticky-chat .chat-text span{display:inline-block;margin-right:auto;padding:10px 10px 10px 20px;background-color:var(--color-bg-chat);border-radius:3px 15px 15px}
.sticky-chat .chat-text span:after{content:'Just now';display:inline-block;margin-left:15px;font-size:9px;color:var(--color-text-alt)}
.sticky-chat .chat-text span.typing{margin:15px 0 0 auto;padding:10px 20px 10px 10px;border-radius:15px 3px 15px 15px}
.sticky-chat .chat-text span.typing:after, .chat-menu{display:none}
.sticky-chat .chat-text span.typing svg{height:14px;fill:var(--color-text-alt)}
.sticky-chat .chat-button{display:flex;align-items:center;margin-top:15px;padding:12px 20px;border-radius:10px;background-color:#fff;box-shadow:0 2px 5px 0 rgba(0,0,0,.05);overflow:hidden;font-size:12px;color:var(--color-text)}
.sticky-chat .chat-button svg{width:20px;height:20px;fill:var(--color-text-alt);margin-left:auto;transform:rotate(40deg);-webkit-transform:rotate(40deg)}
.chat-menu:checked + .sticky-button label{-webkit-transform: rotate(360deg);transform: rotate(360deg);}
.chat-menu:checked + .sticky-button label svg.svg-1{display:none}
.chat-menu:checked + .sticky-button label svg.svg-2{display:table-cell}
.chat-menu:checked + .sticky-button + .sticky-chat{bottom:90px;opacity:1;visibility:visible}

Description:
In the :root{ } section you can change the color of the header, icon and width of the widget as you wish. Also change the left writing that has been marked with marking to right to change the position of the widget so that it is in the right position. And you can also experiment with CSS above which I marked with Marking.

Step 2 : HTML

There are two options that you can choose for the placement of this HTML code, the first is the easiest on the Blogger Layout menu, add a new HTML widget in the sidebar and paste all the HTML code below.

The second is to paste all the HTML code below before the tag </body>, both are the same, it's up to you which way you want to choose.

<input class='chat-menu hidden' id='offchat-menu' type='checkbox' />
<div class='sticky-button' id='sticky-button'>
  <label for='offchat-menu'>
    <svg class='svg-1' viewBox='0 0 32 32'><path d='M16,3A13,13,0,0,0,4.53,22.13L3,27.74a1,1,0,0,0,.27,1A1,1,0,0,0,4,29a.84.84,0,0,0,.27,0l5.91-1.65a1,1,0,0,0-.53-1.93L5.42,26.56l1.15-4.3a1,1,0,0,0-.1-.76A11,11,0,1,1,16,27a11.23,11.23,0,0,1-1.84-.15,1,1,0,0,0-1.15.82,1,1,0,0,0,.82,1.15A13,13,0,1,0,16,3Z'></path><path d='M15,11.21l-1.16-1.6a2.06,2.06,0,0,0-1.5-.84,2.08,2.08,0,0,0-1.62.6l-1.2,1.2a2.81,2.81,0,0,0-.8,2.08c0,1.77,1.36,4,4,6.6,3.09,3,5.23,4,6.69,4a2.7,2.7,0,0,0,2-.81l1.2-1.2a2,2,0,0,0-.24-3.11L20.8,17a2.09,2.09,0,0,0-1.83-.3l-1.49.47a.53.53,0,0,1-.26-.09,11.42,11.42,0,0,1-2.35-2.26.31.31,0,0,1,0-.11c.13-.44.35-1.15.5-1.64A2,2,0,0,0,15,11.21Zm1.29,7.63a2.33,2.33,0,0,0,1.75.2l1.54-.46,1.61,1.25L20,21c-.48.47-2.25.33-5.86-3.21-3-2.91-3.41-4.5-3.41-5.18A.89.89,0,0,1,11,12l1.28-1.19,1.18,1.65c-.16.49-.39,1.22-.51,1.65A2.12,2.12,0,0,0,13,15.51,11.24,11.24,0,0,0,16.33,18.84Z'></path></svg>
    <svg class='svg-2' viewbox='0 0 512 512'>
      <path d='M278.6 256l68.2-68.2c6.2-6.2 6.2-16.4 0-22.6-6.2-6.2-16.4-6.2-22.6 0L256 233.4l-68.2-68.2c-6.2-6.2-16.4-6.2-22.6 0-3.1 3.1-4.7 7.2-4.7 11.3 0 4.1 1.6 8.2 4.7 11.3l68.2 68.2-68.2 68.2c-3.1 3.1-4.7 7.2-4.7 11.3 0 4.1 1.6 8.2 4.7 11.3 6.2 6.2 16.4 6.2 22.6 0l68.2-68.2 68.2 68.2c6.2 6.2 16.4 6.2 22.6 0 6.2-6.2 6.2-16.4 0-22.6L278.6 256z'></path>
    </svg>
  </label>
</div>
<div class='sticky-chat'>
  <div class='chat-content'>
    <div class='chat-header'>
      <svg viewbox='0 0 32 32'><path d='M24,22a1,1,0,0,1-.64-.23L18.84,18H17A8,8,0,0,1,17,2h6a8,8,0,0,1,2,15.74V21a1,1,0,0,1-.58.91A1,1,0,0,1,24,22ZM17,4a6,6,0,0,0,0,12h2.2a1,1,0,0,1,.64.23L23,18.86V16.92a1,1,0,0,1,.86-1A6,6,0,0,0,23,4Z'></path><rect height='2' width='2' x='19' y='9'></rect><rect height='2' width='2' x='14' y='9'></rect><rect height='2' width='2' x='24' y='9'></rect><path d='M8,30a1,1,0,0,1-.42-.09A1,1,0,0,1,7,29V25.74a8,8,0,0,1-1.28-15,1,1,0,1,1,.82,1.82,6,6,0,0,0,1.6,11.4,1,1,0,0,1,.86,1v1.94l3.16-2.63A1,1,0,0,1,12.8,24H15a5.94,5.94,0,0,0,4.29-1.82,1,1,0,0,1,1.44,1.4A8,8,0,0,1,15,26H13.16L8.64,29.77A1,1,0,0,1,8,30Z'></path></svg>
      <div class='title'>Please chat with our team <span>Admin will reply in a few minutes</span></div>
    </div>
    <div class='chat-text'>
      <span>Hello, Is there anything we can help you with?</span>
      <span class='typing'><svg viewbox='0 0 512 512'><circle cx='256' cy='256' r='48'></circle><circle cx='416' cy='256' r='48'></circle><circle cx='96' cy='256' r='48'></circle></svg></span>
    </div>
  </div>
  <a class='chat-button' href='https://api.whatsapp.com/send?phone=+88017142*****&text=Assalamualaikum,%20i%20want%20to%20ask' rel='nofollow noreferrer' target='_blank'>
    <span>Start chat...</span>
    <svg viewBox='0 0 32 32'><path class='cls-1' d='M19.47,31a2,2,0,0,1-1.8-1.09l-4-7.57a1,1,0,0,1,1.77-.93l4,7.57L29,3.06,3,12.49l9.8,5.26,8.32-8.32a1,1,0,0,1,1.42,1.42l-8.85,8.84a1,1,0,0,1-1.17.18L2.09,14.33a2,2,0,0,1,.25-3.72L28.25,1.13a2,2,0,0,1,2.62,2.62L21.39,29.66A2,2,0,0,1,19.61,31Z'></path></svg>    
  </a>
</div>

That's the tutorial on How to Create a Whatsapp Chat Widget Button on Blogger . Hopefully useful and see you in the next post.