Headers

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2.5.0

Headers combine a title, border, and–when appropriate–actions to introduce a group of information and/or functionality. They also help establish clear visual hierarchy, adding structure to a composition.

Header

Top Border

Size

Title Description

Client facing view

Actions

Client facing view

Background Color

Invalid Combination

That combination of options is invalid.

View Code

Anatomy

Headers can be configured in a variety of ways to accomplish their intended goal. Implementing teams are encouraged to use the particular set of elements which best serve their use case.

Name	Required	Description
Title	Yes	Briefly summarizes the content following the header.
Border	No	Visually defines the header’s space, dividing content into related groups, and helping to establish information hierarchy.
Title Description	No	Provides an Icon-only Button as an interaction point to surface additional information via a Tooltip or Popover.
Action	No	Includes Buttons, Button Groups, or other UI components.

Variations

Default

Use to pair typography and a border to create visual hierarchy. Headers can use the full range of Header borders to define their border-top.

With Primary Header Border

Header Title

With Secondary Header Border

Header Title

With Tertiary Header Border

Header Title

<div class="mds-header mds-header--primary">
    <h2 class="mds-header__title"> Header Title </h2>
</div>

Omit the border modifier class to render a borderless header.

Without Border

Header Title

<div class="mds-header">
    <h2 class="mds-header__title"> Header Title </h2>
</div>

Do avoid unnecessary visual noise by omitting the border from the first header in a stack of sections with headers.

Don‘t include a border on the first header in a stack of sections with headers.

Nesting Headers

Nest headers to create layered hierarchies which clearly communicate the relationship between sets of information.

Do use header borders in their intended nesting order.

Don‘t reorder header borders to create a paradoxical hierarchy.

Use the headers which make sense within the visual hierarchy of a product. Products do not have to always use the full set of headers, e.g., a product can use just Secondary and Tertiary headers.

With Title Description

Use to include an Icon-only Button to provide an interaction point for surfacing additional information that clarifies the content introduced by the header, e.g., a data definition housed in a Tooltip or a Popover.

With Title Description

Header Title

<div class="mds-header mds-header--primary">
    <h2 class="mds-header__title"> Header Title <div class="mds-header__title-description">
            <button class="mds-button mds-button--icon-only">
                <svg class="mds-icon mds-button__icon mds-button__icon--left" aria-hidden="true">
                    <use xlink:href="/icons/mds.svg#question-circle">
                    </use>
                </svg>
            </button>
        </div>
    </h2>
</div>

With Actions

Use to provide functionality related to the elements grouped under a header.

With Actions

Header Title

<div class="mds-header mds-header--primary">
    <h2 class="mds-header__title"> Header Title <div class="mds-header__title-description">
            <button class="mds-button mds-button--icon-only">
                <svg class="mds-icon mds-button__icon mds-button__icon--left" aria-hidden="true">
                    <use xlink:href="/icons/mds.svg#question-circle">
                    </use>
                </svg>
            </button>
        </div>
    </h2>
    <div class="mds-header__actions">
        <div class="mds-button-group">
            <button class="mds-button mds-button--secondary mds-button--small mds-button--active"> Option 1 </button>
            <button class="mds-button mds-button--secondary mds-button--small"> Option 2 </button>
        </div>
    </div>
</div>

Actions should always relate to content directly contained by the header, or content nested within subsequent headers in a composition’s hierarchy.

Bottom Border

Reposition the border and increase padding above and below the title by applying the mds-header--border-bottom modifier class.

Bottom Border

Header Title

<div class="mds-header mds-header--primary mds-header--border-bottom">
    <h2 class="mds-header__title"> Header Title </h2>
</div>

Avoid using this variation outside of Module Containers.

Sizing

Sizing affects text size and internal padding. Modifier classes provide access to the full set of font sizes offered within the system.

Level 1 Header

Header Title

Level 2 Header

Header Title

Level 3 Header

Header Title

Level 4 Header

Header Title

Level 5 Header

Header Title

Level 6 Header

Header Title

Level 7 Header

Header Title

Level 8 Header

Header Title

Level 9 Header

Header Title

<div class="mds-header mds-header--primary mds-header--level-1">
    <h2 class="mds-header__title"> Header Title </h2>
</div>

Pairing UI Components with Heading Sizes

To maintain proper proportional relationships while providing flexibility, choose what size of UI Components to use within a With Actions header, and what size of Icon-only Button to use within the Info element, using the table below.

Title	Text Size	Small Components	Medium Components	Large Components
Level 1 Heading	`45px`	Can Use	Can Use	Can Use
Level 2 Heading	`32px`	Can Use	Can Use	—
Level 3 Heading	`28px`	Can Use	Can Use	—
Level 4 Heading	`23px`	Can Use	Can Use	—
Level 5 Heading	`20px`	Can Use	Can Use	—
Level 6 Heading	`18px`	Can Use	—	—
Level 7 Heading	`16px`	Can Use	—	—
Level 8 Heading	`14px`	Can Use	—	—
Level 9 Heading	`10px`	—	—	—

Guidelines

Use When

Pairing typography and a border to define a section of a composition.
Creating visual and informational hierarchy on a page.
Providing actions or controls for a section of content.

Don’t Use When

Creating a vertical series of links or other elements, instead, use a List Group.

Visual Language

At level-6 through level-9, the internal padding tightens.
Header titles are bold by default. If requirements call for a different font-weight, work with a designer to create custom styles within your product’s CSS, which utilize the MDS font weight constants.

Editorial

Actions

Always follow the editorial guidelines for any included UI components.

Title

Keep titles to five words, if possible, to avoid wrapping.
Use title case and capitalize prepositions of four letters or more.

Accessibility

When creating the mds-header__title of a header component, teams should use the header tag (<h#>) which properly places the content within their product's information hierarchy.
When appropriate, add a unique ID to the mds-header__title to be referenced by its parent container through an aria-labelledby attribute. This will clearly communicate their relationship.

Code Reference

CSS Class References

Class	Applies to	Outcome
`mds-header--primary`	`mds-header`	Applies a Primary Header Border to the `border-top`.
`mds-header--secondary`	`mds-header`	Applies a Secondary Header Border to the `border-top`.
`mds-header--tertiary`	`mds-header`	Applies a Tertiary Header Border to the `border-top`.
`mds-header--border-bottom`	`mds-header--primary`, `mds-header--secondary`, `mds-header--tertiary`	For use in Module Containers only. Repositions the border and increases padding above and below the title.
`mds-header--level-1`	`mds-header`	Sets the Title to `$mds-font-size-heading-level-1`.
`mds-header--level-2`	`mds-header`	Sets the Title to `$mds-font-size-heading-level-2`.
`mds-header--level-3`	`mds-header`	Sets the Title to `$mds-font-size-heading-level-3`.
`mds-header--level-4`	`mds-header`	Sets the Title to `$mds-font-size-heading-level-4`.
`mds-header--level-5`	`mds-header`	Sets the Title to `$mds-font-size-heading-level-5`.
`mds-header--level-6`	`mds-header`	Sets the Title to `$mds-font-size-heading-level-6` and reduces the `padding-top`.
`mds-header--level-7`	`mds-header`	Sets the Title to `$mds-font-size-m` and reduces the `padding-top`.
`mds-header--level-8`	`mds-header`	Sets the Title to $mds-font-size-s and reduces the `padding-top`.
`mds-header--level-9`	`mds-header`	Sets the Title to `$mds-font-size-xs`, sets `letter-spacing` and `text-transform` values, and reduces the `padding-top`.

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