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