The SVG <style> element allows style sheets to be embedded directly within SVG content.

The grouping ( ) operator controls the precedence of evaluation in expressions. It also acts as a container for arbitrary expressions in certain syntactic constructs, where ambiguity or syntax errors would otherwise occur.

The NaN global property is a value representing Not-A-Number.

The bitwise NOT (~) operator returns a number or BigInt whose binary representation has a 1 in each bit position for which the corresponding bit of the operand is 0, and a 0 otherwise.

The additive attribute controls whether or not an animation is additive.

The bitwise AND (&) operator returns a number or BigInt whose binary representation has a 1 in each bit position for which the corresponding bits of both operands are 1.

The divisor attribute specifies the value by which the resulting number of applying the kernelMatrix of a <feConvolveMatrix> element to the input image color value is divided to yield the destination color value.

The direction attribute specifies the inline-base direction of a <text> or <tspan> element. It defines the start and end points of a line of text as used by the text-anchor and inline-size properties. It also may affect the direction in which characters are positioned if the unicode-bidi property's value is either embed or bidi-override.

The cap-height attribute defines the height of uppercase glyphs of the font within the font coordinate system.

The mode attribute defines the blending mode on the <feBlend> filter primitive.