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