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