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