Element block pseudo-class :active generated with background display block box-sizing content-box font-weight normal line-height 0 box-shadow 1px 1px 1px rgba(0,0,0,0.3) margin 0px transition width 160px text-shadow 1px 1px 1px rgba(0,0,0,0.2) position static float none border-radius height auto cursor default font-size 17px z-index auto transform border 0px rgba(0,0,0,1) solid overflow hidden padding 20px