Element button pseudo-element :before generated with opacity 1 margin 0px padding 0px background status box-sizing content-box transition overflow visible font-size 16px transform height auto z-index auto display block line-height normal width auto outline none box-shadow font-weight normal position static border-radius border 0px rgba(0,0,0,1) solid cursor default float none text-shadow 1px 1px 0px rgba(0,0,0,0.25)