How to create a split button dropdown with CSS?

Following is the code to create split button dropdown with CSS −


 Live Demo

<!DOCTYPE html>
<meta name="viewport" content="width=device-width, initial-scale=1" />
body {
   font-family: "Lucida Sans", "Lucida Sans Regular", "Lucida Grande",
"Lucida Sans Unicode", Geneva, Verdana, sans-serif;
button {
   background-color: rgb(18, 5, 95);
   color: white;
   padding: 16px;
   font-size: 20px;
   font-weight: bolder;
   font-family: monospace, sans-serif;
   border: none;
   outline: none;
.dropMenu {
   position: absolute;
   display: inline-block;
.dropMenu button {
   border-left: 1px solid #0d8bf2;
.dropContent {
   display: none;
   position: absolute;
   background-color: #f1f1f1;
   min-width: 160px;
   z-index: 1;
.dropContent a {
   color: black;
   background-color: rgb(184, 253, 255);
   font-size: 18px;
   font-weight: bold;
   padding: 12px 16px;
   text-decoration: none;
   display: block;
.dropContent a:hover {
   background-color: rgb(48, 0, 110);
   color: white;
.dropMenu:hover .dropContent {
   display: block;
.dropMenu:hover .btn {
   background-color: #0b7dda;
<h1>Split Button dropMenu Example</h1>
<div class="dropMenu">
<div class="dropContent">
<a href="#">First Link</a>
<a href="#">Second Link</a>
<a href="#">Third Link</a>
<h1>Hover over '>>' to open dropMenu menu</h1>


The above code will produce the following output −

n hovering above the dropdown button, the dropdown menu will open as shown −