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