Element button pseudo-element :before generated with display block box-shadow 1px 1px 6px rgba(0,0,0,1) transition box-sizing content-box overflow hidden font-size 16px position static float none text-shadow z-index auto font-weight normal opacity 1 height auto width 160px padding 20px border-radius line-height 1 transform outline none margin 0px border 0px rgba(0,0,0,1) solid cursor default background