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