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