Element block pseudo-class :active generated with display block padding 20px width 160px box-sizing content-box box-shadow 1px 1px 1px rgba(0,0,0,0.3) float none z-index auto overflow hidden font-weight normal background margin 0px border-radius height auto position static border 0px rgba(0,0,0,1) solid transition text-shadow 1px 1px 1px rgba(0,0,0,0.2) line-height 1 cursor default font-size 16px transform