Element block pseudo-class :active generated with display block text-shadow 1px 1px 1px rgba(0,0,0,0.2) border-radius padding 20px box-sizing content-box position static transition background height auto margin 0px overflow hidden transform float none font-size 16px line-height 1 font-weight normal border 53px rgba(0,0,0,1) solid cursor default width 160px box-shadow 1px 1px 1px rgba(0,0,0,0.3) z-index auto