block-first-child-3-ref.html (289B)
1 <!DOCTYPE html> 2 <html> 3 <head> 4 <style type="text/css"> 5 #separator { 6 height: 20px; 7 background-color: green; 8 } 9 #first-child { 10 height: 20px; 11 background-color: blue; 12 } 13 </style> 14 </head> 15 <body> 16 <div id="separator"></div> 17 <div id="parent"> 18 <div id="first-child"></div> 19 </div> 20 </body> 21 </html>