TextMode

Literal text within math. Spaces and adjacent-run kerning survive; x^2 stays literal. Nest MathText or Tex for mathematical notation.

Property	Default	Meaning
children	Empty	Literal strings, numbers, spans, or elements.
family	Main or selected text face	Choose "main", "sans", or "mono" for literal runs.
bold / italic	Selected text face	Override the literal face's weight and shape.
font-family	Main math text face	An explicit KaTeX face, such as mathit.
style / size-index	Inherited	Math style and TeX size table; scripts scale text once.
strut	false	Add the usual one-em math strut.
klass / left / right	"mord"	Treat the completed text as a math atom.

The main family includes regular, bold, italic, and bold italic. Sans includes regular, bold, and italic; mono has regular only. Sans bold italic and styled mono fall back to the corresponding Main face to retain weight and shape. KaTeX's current renderer instead errors on these unavailable combinations. Glyphs missing from the selected face fall back to their ordinary text face; glyphs absent there too produce an error. The family, bold, and italic choices apply to literal runs; nested math keeps its own math font. Spans can color or resize part of the literal content.

There is no automatic TeX spacing between children and no wrapping inside TextMode. Source line endings and tabs become single spaces; ordinary spaces are preserved. Use an explicitly sized Text for a wrapping prose operand. The TeX adapter uses this literal-run path for composed family, weight, and shape commands, including math nested inside $…$. See math fonts and macros for the command list, local resets, emphasis, accents, and verbatim text.

See inline math and mixed composition.