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