<!DOCTYPE html> <html> <head> <style type="text/css"> #bar1 { height: 20px; background-color: green; margin-bottom: 10px; } #none { display: none; height: 20px; background-color: red; margin-top: 30px; margin-bottom: 40px; } #bar2 { height: 20px; background-color: blue; margin-top: 20px; } </style> </head> <body> <div id="bar1"></div> <div id="none"></div> <div id="bar2"></div> </body> </html>