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