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