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