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