CSS

CSS

#rrggbbaa hex color notation ::first-letter CSS pseudo-element selector ::placeholder CSS pseudo-element ::selection CSS pseudo-element :default CSS pseudo-class :dir() CSS pseudo-class :focus-within CSS pseudo-class :has() CSS relational pseudo-class :in-range and :out-of-range CSS pseudo-classes :indeterminate CSS pseudo-class :matches() CSS pseudo-class :optional CSS pseudo-class :placeholder-shown CSS pseudo-class Blending of HTML/SVG elements CSS @apply rule CSS Appearance CSS Canvas Drawings CSS Containment CSS Cross-Fade Function CSS Device Adaptation CSS Exclusions Level 1 CSS Grid Layout CSS Initial Letter CSS Masks CSS Motion Path CSS Reflections CSS Scroll snap points CSS all property CSS background-attachment CSS background-blend-mode CSS currentColor value CSS display: contents CSS font-rendering controls CSS font-size-adjust CSS font-stretch CSS hanging-punctuation CSS image-set CSS initial value CSS line-clamp CSS namespaces CSS page-break properties CSS position:fixed CSS position:sticky CSS revert value CSS scrollbar styling CSS text-indent CSS text-justify CSS text-orientation CSS text-stroke and text-fill CSS touch-action property CSS unset value CSS user-select: none CSS widows & orphans CSS will-change property CSS writing-mode property CSS zoom CSS3 attr() function CSSOM Scroll-behavior Case-insensitive CSS attribute selectors Explicit descendant combinator >> Improved kerning pairs & ligatures Media Queries: interaction media features Rebeccapurple color background-position-x & background-position-y letter-spacing CSS property selector list argument of :not() selector list argument of :nth-child and :nth-last-child CSS pseudo-classes

CSS2

CSS3

@font-face Web fonts CSS ::marker pseudo-element CSS Animation CSS Backdrop Filter CSS Counter Styles CSS Feature Queries CSS Filter Effects CSS Generated content for pseudo-elements CSS Gradients CSS Hyphenation CSS Logical Properties CSS Regions CSS Repeating Gradients CSS Shapes Level 1 CSS Variables (Custom Properties) CSS background-position edge offsets CSS background-repeat round and space CSS box-decoration-break CSS clip-path property (for HTML) CSS element() function CSS filter() function CSS first-line pseudo-element CSS font-feature-settings CSS font-smooth CSS font-variant-alternates CSS outline properties CSS overflow-anchor (Scroll Anchoring) CSS pointer-events (for HTML) CSS resize property CSS text-size-adjust CSS3 2D Transforms CSS3 3D Transforms CSS3 Background-image options CSS3 Border images CSS3 Border-radius (rounded corners) CSS3 Box-shadow CSS3 Box-sizing CSS3 Colors CSS3 Cursors (original values) CSS3 Cursors: zoom-in & zoom-out CSS3 Media Queries CSS3 Multiple backgrounds CSS3 Multiple column layout CSS3 Opacity CSS3 Overflow-wrap CSS3 Text-overflow CSS3 Text-shadow CSS3 Transitions CSS3 font-kerning CSS3 image-orientation CSS3 object-fit/object-position CSS3 selectors CSS3 tab-size CSS3 text-align-last CSS3 word-break Crisp edges/pixelated images Flexible Box Layout Module Font unicode-range subsetting Intrinsic & Extrinsic Sizing Media Queries: resolution feature TTF/OTF - TrueType and OpenType font support Viewport units: vw, vh, vmin, vmax calc() as CSS unit value ch (character) unit rem (root em) units text-decoration styling text-emphasis styling