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