Typography
Use typography to present your design and content as clearly and efficiently as possible.
Too many type sizes and styles at once can spoil any layout. A typographic scale has a limited set of type sizes that work well together along with the layout grid.
General
The Roboto font will not be automatically loaded by Material-UI. The developer is responsible for loading all fonts used in their application. Roboto Font has a few easy ways to get started. For more advanced configuration, check out the theme customization section.
Roboto Font CDN
Shown below is a sample link markup used to load the Roboto font from a CDN:
<link
rel="stylesheet"
href="https://fonts.googleapis.com/css?family=Roboto:300,400,500,700&display=swap"
/>
Install with npm
You can install it by typing the below command in your terminal:
npm install fontsource-roboto
Then, you can import it in your entry-point.
import 'fontsource-roboto';
For more info check out Fontsource.
⚠️ Be careful when using this approach. Make sure your bundler doesn't eager load all the font variations (100/300/400/500/700/900, italic/regular, SVG/woff). Fontsource can be configured to load specific subsets, weights and styles. Inlining all the font files can significantly increase the size of your bundle. Material-UI default typography configuration only relies on 300, 400, 500, and 700 font weights.
Component
h1. Heading
h2. Heading
h3. Heading
h4. Heading
h5. Heading
h6. Heading
subtitle1. Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quos blanditiis tenetur
subtitle2. Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quos blanditiis tenetur
body1. Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quos blanditiis tenetur unde suscipit, quam beatae rerum inventore consectetur, neque doloribus, cupiditate numquam dignissimos laborum fugiat deleniti? Eum quasi quidem quibusdam.
body2. Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quos blanditiis tenetur unde suscipit, quam beatae rerum inventore consectetur, neque doloribus, cupiditate numquam dignissimos laborum fugiat deleniti? Eum quasi quidem quibusdam.
overline textTheme
In some situations you might not be able to use the Typography
component.
Hopefully, you might be able to take advantage of the typography
keys of the theme.
{"This div's text looks like that of a button."}
Changing the semantic element
The Typography component uses the variantMapping
property to associate a UI variant with a semantic element.
It’s important to realize that the style of a typography is independent from the semantic underlying element.
- You can change the underlying element for a one time occasion with the
component
property:
{
/* There is already an h1 in the page, let's not duplicate it. */
}
<Typography variant="h1" component="h2">
h1. Heading
</Typography>;
- You can change the mapping globally using the theme:
const theme = createMuiTheme({
props: {
MuiTypography: {
variantMapping: {
h1: 'h2',
h2: 'h2',
h3: 'h2',
h4: 'h2',
h5: 'h2',
h6: 'h2',
subtitle1: 'h2',
subtitle2: 'h2',
body1: 'span',
body2: 'span',
},
},
},
});
Accessibility
A few key factors to follow for an accessible typography:
- Color. Provide enough contrast between text and its background, check out the minimum recommended WCAG 2.0 color contrast ratio (4.5:1).
- Font size. Use relative units (rem) to accommodate the user's settings.
- Heading hierarchy. Don't skip heading levels. In order to solve this problem, you need to separate the semantics from the style.