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