block-clear-7efgh-left-ref1.html (421B)
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 margin-bottom: 50px; 12 height: 100px; 13 } 14 #float { 15 width: 100px; height: 100px; 16 margin-right: auto; 17 background-color: blue; 18 } 19 </style> 20 </head> 21 <body> 22 <div class="separator"></div> 23 <div id="parent"> 24 <div id="float"></div> 25 </div> 26 <div class="separator"></div> 27 </body> 28 </html>