document.getElementById('header').style.width="50%";
If you are using Firebug or the Chrome/Safari Developer tools, execute the above in the console, and you’ll see the Stack Overflow header shrink by 50%.
document.getElementById('header').style.width="50%";
If you are using Firebug or the Chrome/Safari Developer tools, execute the above in the console, and you’ll see the Stack Overflow header shrink by 50%.