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