block-clear-7abcd-left-ref.html (383B)
1 <!DOCTYPE html> 2 <html> 3 <head> 4 <style type="text/css"> 5 .separator { 6 height: 20px; 7 background-color: green; 8 } 9 #parent { 10 background-color: lime; 11 } 12 #float { 13 width: 100px; height: 100px; 14 margin-right: auto; 15 background-color: blue; 16 } 17 </style> 18 </head> 19 <body> 20 <div class="separator"></div> 21 <div id="parent"> 22 <div id="float"></div> 23 </div> 24 <div class="separator"></div> 25 </body> 26 </html>