Element block pseudo-class :active generated with box-sizing content-box width 159px transition border 2px rgba(81,219,210,1) solid margin 0px height auto font-weight normal transform line-height 1 display block border-radius font-size 16px overflow hidden background position static z-index auto text-shadow 1px 1px 1px rgba(0,0,0,0.2) float left box-shadow 1px 1px 1px rgba(0,0,0,0.3) cursor default padding 20px