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<!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width, initial-scale=1"> <style> body {font-family: "Lato", sans-serif;} .tablink { background-color: #555; color: white; float: left; border: none; outline: none; cursor: pointer; padding: 14px 16px; font-size: 17px; width: 25%; } .tablink:hover { background-color: #777; } /* Style the tab content */ .tabcontent { color: white; display: none; padding: 50px; text-align: center; } #London {background-color:red;} #Paris {background-color:green;} #Tokyo {background-color:blue;} #Oslo {background-color:orange;} </style> </head> <body> <p>Click on the buttons inside the tabbed menu:</p> <div id="London" class="tabcontent"> <h1>London</h1> <p>London is the capital city of England.</p> </div> <div id="Paris" class="tabcontent"> <h1>Paris</h1> <p>Paris is the capital of France.</p> </div> <div id="Tokyo" class="tabcontent"> <h1>Tokyo</h1> <p>Tokyo is the capital of Japan.</p> </div> <div id="Oslo" class="tabcontent"> <h1>Oslo</h1> <p>Oslo is the capital of Norway.</p> </div> <button class="tablink" onclick="openCity('London', this, 'red')" id="defaultOpen">London</button> <button class="tablink" onclick="openCity('Paris', this, 'green')">Paris</button> <button class="tablink" onclick="openCity('Tokyo', this, 'blue')">Tokyo</button> <button class="tablink" onclick="openCity('Oslo', this, 'orange')">Oslo</button> <script> function openCity(cityName,elmnt,color) { var i, tabcontent, tablinks; tabcontent = document.getElementsByClassName("tabcontent"); for (i = 0; i < tabcontent.length; i++) { tabcontent[i].style.display = "none"; } tablinks = document.getElementsByClassName("tablink"); for (i = 0; i < tablinks.length; i++) { tablinks[i].style.backgroundColor = ""; } document.getElementById(cityName).style.display = "block"; elmnt.style.backgroundColor = color; } // Get the element with id="defaultOpen" and click on it document.getElementById("defaultOpen").click(); </script> </body> </html>
