Alphabetical list of CSS Properties A align-content [CSS Align L3] [CSS Flexbox] align-items [CSS Align L3] [CSS Flexbox] align-self [CSS Align L3] [CSS Flexbox] alignment-adjust [CSS Inline L3] alignment-baseline [CSS Inline L3] all [CSS Cascade L3] alt [CSS Pseudo-Elements L4] animation [CSS Animations] animation-delay [CSS Animations] animation-direction [CSS Animations] animation-duration [CSS