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