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