block-no-content-6-ref.html (332B)
1 <!DOCTYPE html> 2 <html> 3 <head> 4 <style type="text/css"> 5 #block1 { 6 height: 20px; 7 background-color: green; 8 } 9 #margin-only { 10 height: 20px; 11 } 12 #block2 { 13 height: 20px; 14 background-color: blue; 15 } 16 </style> 17 </head> 18 <body> 19 <div id="spacer"></div> 20 <div id="block2"></div> 21 <div id="margin-only"></div> 22 <div id="block1"></div> 23 </body> 24 </html>