Element button pseudo-element :before generated with background transition float none cursor default display block overflow visible border 0px rgba(0,0,0,1) solid height auto font-size 16px width auto box-shadow margin 0px box-sizing content-box text-shadow 2px 2px 2px rgba(255,255,255,1) opacity 1 outline none z-index auto status border-radius position static transform line-height normal font-weight bold padding 16px