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