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