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