Índice Z com base nos edifícios mais altos

//start z-index  http://en.wikipedia.org/wiki/List_of_tallest_buildings_in_the_world

.khalifa    {z-index: 99999;}
.shanghai   {z-index: 8000;}
.makkah     {z-index: 7000;}
.owtc       {z-index: 6000;}
.taipei     {z-index: 5000;}
.swfc       {z-index: 4000;}
.icomm      {z-index: 3000;}
.petronas   {z-index: 2000;}
.zifeng     {z-index: 1000;}
.sears      {z-index: 100;}

//eof z-index