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