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