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