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