<!DOCTYPE html> <html> <head> <style type="text/css"> #parent1 { width: 200px; } #block1 { height: 50px; background-color: green; } #parent2 { width: 500px; } #block2 { height: 50px; background-color: green; } #spacer { height: 50px; } </style> </head> <body> <div id="parent1"> <div id="block1"></div> </div> <div id="spacer"></div> <div id="parent2"> <div id="block2"></div> </div> </body> </html>
