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