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