May 2023 web platform update

Now widely available on the web platform

Widely available

• Conic gradients: The conic-gradient() and repeating-conic-gradient() CSS functions create backgrounds that progress between two or more colors around a center point. Learn more.

• Text underline position: The text-underline-position and text-underline-offset CSS properties set the position and distance from initial position of text underlines on text with text-decoration: underline. Learn more.

Newly available on the web platform

Newly available

• color(): The color() function picks a color from a given color space. Wide gamut color spaces like display-p3 allow showing more vibrant and saturated colors than the standard srgb color space. Learn more.

• color-mix(): The color-mix() function mixes two colors in a given color space and by a given amount. Commonly, lighter or darker variations of a color are created by mixing with white or black. Learn more.

• Compression streams: The CompressionStream and DecompressionStream interfaces compress and decompress data using the gzip or deflate formats. Learn more.

• Lab and LCH: The CIE Lab color space expresses colors in terms of lightness and how red/green and blue/yellow a color is. LCH is a variant of Lab with polar coordinates. These color spaces can be used with the CSS color(), lab(), and lch() functions. Also known as CIELAB and CIELCH. Learn more.

• :nth-child() of <selector>: The of syntax for the :nth-child() and :nth-last-child() CSS functional pseudo-classes match elements by the relative position of elements, counted from the first or last sibling matching a selector list. Learn more.

• Oklab and Oklch: The Oklab color space expresses colors in terms of lightness and how red/green and blue/yellow a color is, aiming to match how humans perceive colors. Oklch is a variant of Oklab with polar coordinates. These color spaces can be used with the CSS color(), oklab(), and oklch() functions. Learn more.

• WebRTC SCTP information: The sctp object on RTCPeerConnection represents the negotiated SCTP transport. SCTP (Stream Control Transmission Protocol) is the protocol that RTCDataChannel uses. Learn more.