Try the following entire source code for a three-dot menu:
index.html
<!DOCTYPE html>
<html>
<head>
<title>Three Dot Menu</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<style>
*{margin: 0;padding:0px}
.header{
width: 100%;
background-color: #0d77b6 !important;
height: 60px;
}
.showLeft{
background-color: #0d77b6 !important;
border:1px solid #0d77b6 !important;
text-shadow: none !important;
color:#fff !important;
padding:10px;
}
.icons li {
background: none repeat scroll 0 0 #fff;
height: 7px;
width: 7px;
line-height: 0;
list-style: none outside none;
margin-right: 15px;
margin-top: 3px;
vertical-align: top;
border-radius:50%;
pointer-events: none;
}
.btn-left {
left: 0.4em;
}
.btn-right {
right: 0.4em;
}
.btn-left, .btn-right {
position: absolute;
top: 0.24em;
}
.dropbtn {
background-color: #4CAF50;
position: fixed;
color: white;
font-size: 16px;
border: none;
cursor: pointer;
}
.dropbtn:hover, .dropbtn:focus {
background-color: #3e8e41;
}
.dropdown {
position: absolute;
display: inline-block;
right: 0.4em;
}
.dropdown-content {
display: none;
position: relative;
margin-top: 60px;
background-color: #f9f9f9;
min-width: 160px;
overflow: auto;
box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
z-index: 1;
}
.dropdown-content a {
color: black;
padding: 12px 16px;
text-decoration: none;
display: block;
}
.dropdown a:hover {background-color: #f1f1f1}
.show {display:block;}
</style>
<script>
function changeLanguage(language) {
var element = document.getElementById("url");
element.value = language;
element.innerHTML = language;
}
function showDropdown() {
document.getElementById("myDropdown").classList.toggle("show");
}
// Close the dropdown if the user clicks outside of it
window.onclick = function(event) {
if (!event.target.matches('.dropbtn')) {
var dropdowns = document.getElementsByClassName("dropdown-content");
var i;
for (i = 0; i < dropdowns.length; i++) {
var openDropdown = dropdowns[i];
if (openDropdown.classList.contains('show')) {
openDropdown.classList.remove('show');
}
}
}
}
</script>
</head>
<body>
<div class="header">
<!-- three dot menu -->
<div class="dropdown">
<!-- three dots -->
<ul class="dropbtn icons btn-right showLeft" onclick="showDropdown()">
<li></li>
<li></li>
<li></li>
</ul>
<!-- menu -->
<div id="myDropdown" class="dropdown-content">
<a href="#home">Home</a>
<a href="#about">About</a>
<a href="#contact">Contact</a>
</div>
</div>
</div>
</body>
</html>