<!DOCTYPE html>
body {font-family: Arial;}

/* Style the tab */
div.tab {
overflow: hidden;
border: 1px solid #ccc;
background-color: #f1f1f1;

/* Style the buttons inside the tab */
div.tab button {
background-color: inherit;
float: left;
border: none;
outline: none;
cursor: pointer;
padding: 14px 16px;
transition: 0.3s;
font-size: 17px;

/* Change background color of buttons on hover */
div.tab button:hover {
background-color: #ddd;

/* Create an active/current tablink class */
div.tab button.active {
background-color: #ccc;

/* Style the tab content */
.tabcontent {
display: none;
padding: 6px 12px;
border: 1px solid #ccc;
border-top: none;

<p>Click on the buttons inside the tabbed menu:</p>

<div class="tab">
<button class="tablinks" onclick="openCity(event, 'London')">London</button>
<button class="tablinks" onclick="openCity(event, 'Paris')">Paris</button>
<button class="tablinks" onclick="openCity(event, 'Tokyo')">Tokyo</button>

<div id="London" class="tabcontent" style="display: block">
<p>London is the capital city of England.</p>

<div id="Paris" class="tabcontent">
<p>Paris is the capital of France.</p>

<div id="Tokyo" class="tabcontent">
<p>Tokyo is the capital of Japan.</p>

function openCity(evt, cityName) {
var i, tabcontent, tablinks;
tabcontent = document.getElementsByClassName("tabcontent");
for (i = 0; i < tabcontent.length; i++) {
tabcontent[i].style.display = "none";
tablinks = document.getElementsByClassName("tablinks");
for (i = 0; i < tablinks.length; i++) {
tablinks[i].className = tablinks[i].className.replace(" active", "");
document.getElementById(cityName).style.display = "block";
evt.currentTarget.className += " active";



URL: http://notepad.linkthuthuat.com/