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