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