1452805-ref.html (487B)
1 <html> 2 <head> 3 <style> 4 div { 5 width: 200px; 6 height: 200px; 7 background-color: blue; 8 filter: greyscale(50%); 9 position: relative; 10 } 11 #second { 12 width: 600px; 13 height: 500px; 14 background-color: green; 15 } 16 </style> 17 </head> 18 <body> 19 <div id="top" style="z-index:-4;"></div> 20 <div style="top: 10px;"></div> 21 <div style="top: 20px;"> 22 <div id="second" style="top: -400px;"></div> 23 </div> 24 </body> 25 </html>