Element block pseudo-class :active generated with z-index auto position static text-shadow 1px 1px 1px rgba(0,0,0,0.2) background transform margin 0px box-shadow 1px 1px 1px rgba(0,0,0,0.3) overflow hidden width 0px border-radius border 0px rgba(0,0,0,1) solid cursor default float none transition padding 20px box-sizing content-box font-weight normal height 25% line-height 1 display block font-size 16px