Heading styles


The heading pattern provides basic typographic styles for your page titles, also known as H1. Each heading has its own sizes depending on the breakpoints.

Heading styles

There are two different types of heading styles for Mozaic. One is a text only and the other style is a combination of a text and an underline. Read more.

Heading Medium

Heading medium are supposed to be used as the default heading style for your pages. Every breakpoint has a default value that should be used in most cases.

 Breakpoint Heading size
S (320px and up)28px (1.75mu)
M (680px and up)34px (2.125mu)
L to XL (1024px and up)41px (2.5625mu)
Don't use a larger size for your text elements than the heading size in your pages. This will help you maintain a consistent hierarchy.

Specific needs

This heading styles system still allows you to answer specific needs depending on the content of your pages or your section.

Heading Small

These heading styles sizes are the smallest sizes you can use for your titles.

 Breakpoint Heading size
S (320px and up)23px (1.75mu)
M (680px and up)28px (1.75mu)
L to XL (1024px and up)34px (2.125mu)
Be aware
If you use smaller values you will loose visual hierarchy with the body.

Heading Large

Mozaic provides large heading styles when you need to make some titles stand out. You can find these cases on landing pages for example.

 Breakpoint Heading size
S (320px and up)34px (2.125mu)
M (680px and up)41px (2.5625mu)
L to XL (1024px and up)49px (3.0625mu)


Font weight

There are two different font-weights available for your text headings.

RegularUse this font-weight for your common text headings
SemiBoldThis font-weight allows you to visually emphasise your text headings

Text colors

You can use the darkest or the lightest font color depending on the background color. This choice must be made with accessibility in mind.

Underlined headings

In some cases, your title can be a combination of a text and an underline. These underlined headings can be useful when you need to give more importance to your heading or make visual separations.


Please note that underlined headings are available in SemiBold only.

Underline colors

The color of the underline allows you to give visual context to your page or section.

Color themeUsage
Primary-01-500For LEROY MERLIN title pages on light and dark backgrounds
Primary-01-200For LEROY MERLIN title pages on Primary-01-500 backgrounds
Primary-02-600For LEROY MERLIN Campus title pages on light backgrounds
Primary-02-200For LEROY MERLIN Campus title pages on dark backgrounds

Padding bottom

Headings include a default padding bottom to keep the right vertical rhythm between the interface elements.



You can find different aligments, left / center/ right for your headings.

Useful tip
The heading underline will move depending on the alignment you choose to use.