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