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