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