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