screen_rotation
Copied to Clipboard
<!DOCTYPE html> <html lang="en"> <head> <style> .demoClass { background-color: lightblue; padding: 10px; font-size: 18px; border: 2px solid transparent; } </style> </head> <body> <div class="demoClass">This is the selected element!</div> <div class="otherClass">This is Other Class</div> <script> document.addEventListener("DOMContentLoaded", function () { const element = document.querySelector(".demoClass"); element.style.border = "2px solid blue"; }); </script> </body> </html>