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