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