Element block pseudo-class :active generated with line-height normal z-index auto width 50px outline none box-shadow float left transform margin 2px background border 2px rgba(0,0,0,1) solid position relative font-size 16px overflow visible cursor default padding 2px font-weight normal box-sizing content-box text-shadow 1px 1px 0px rgba(255,255,255,0.2) display inline-block transition opacity 1 border-radius height auto