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