Element block pseudo-element :before generated with border 1px rgba(137,137,137,0.55) solid background font-size 16px text-shadow z-index auto height 300px position static transform border-radius box-shadow 1px 1px 4px rgba(0,0,0,0.13) box-sizing content-box width 300px opacity 1 overflow visible line-height 1 padding 0px margin 0px cursor default transition display block float none outline none font-weight normal