<!DOCTYPE html> <html> <head> <style type="text/css"> html, body { margin: 0; padding: 5px; } div { height: 20px; background-color: green; } #small { margin-top: 40px; margin-bottom: -40px; } #big { margin-top: -60px; background-color: blue; } </style> </head> <body> <div id="small"></div> <div id="big"></div> </body> </html>
