Element button pseudo-class :active generated with margin 0px z-index auto transition box-sizing content-box font-size 16px border 4px #b7b7b7 solid display inline-block line-height normal padding 20px overflow visible background position static width auto cursor default box-shadow font-weight normal float none height auto border-radius transform text-shadow 1px 1px 0px rgba(255,255,255,0.66)