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