Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

The mathbackground global attribute sets the background-color of a MathML element.

Note: Use CSS for styling MathML whenever possible. The mathbackground attribute should only be included for applications that are not CSS-aware and will be overridden by the CSS background-color property value, if set.


<!-- Keyword values -->
<math mathbackground="red">
<math mathbackground="indigo">

<!-- Hexadecimal value -->
<math mathbackground="#bbff00"> <!-- Fully opaque -->
<math mathbackground="#bf0"> <!-- Fully opaque shorthand -->
<math mathbackground="#11ffee00"> <!-- Fully transparent -->
<math mathbackground="#1fe0"> <!-- Fully transparent shorthand -->
<math mathbackground="#11ffeeff"> <!-- Fully opaque -->
<math mathbackground="#1fef"> <!-- Fully opaque shorthand -->

<!-- RGB value -->
<math mathbackground="rgb(255 255 128)"> <!-- Fully opaque -->
<math mathbackground="rgb(117 190 218 / 50%)"> <!-- 50% transparent -->

<!-- HSL value -->
<math mathbackground="hsl(50 33% 25%)"> <!-- Fully opaque -->
<math mathbackground="hsl(50 33% 25% / 75%)"> <!-- 75% opaque, i.e. 25% transparent -->



The uniform color of the background.


MathML Core
# dfn-mathbackground
  • In MathML 3 and earlier versions, a more limited set of values was supported. Since MathML Core, the syntax matches CSS <color> values.
  • This attribute was designed for MathML applications that are not CSS-aware. Since MathML Core, the use of equivalent CSS is recommended instead.

Browser compatibility

BCD tables only load in the browser

See also