Used to present secondary content or navigation which could be a part of the page but due to limited screen real-estate, or to focus user attention, sits just outside screen until triggered by the user.
An off canvas is a modal drawer that slides in from the right.
The page behind becomes frozen while an off canvas is open.
The browser scroll bar (or facsimile) controls the off canvas content while it's open instead of the page behind.
On larger breakpoints, an off canvas takes over a maximum of 10/12 columns, leaving a portion of the main screen visible.
On smaller breakpoints, the off canvas takes over the entire screen.
The off canvas masthead is a fixed element that remains in its persistent location as the user scrolls.
To close an off canvas, either select the left-most CTA in its masthead (typically "< Back") or on a touchscreen swipe it to the right.
Title case, 2-3 words maximum.
Do not combine actions in a label (exception: "Customize & Buy").
If standard labels don't fit the button's purpose, align label with the task the user is attempting.
Please refer to the Dell Technologies branding website, https://brand.delltechnologies.com/faq/#voice, for further information regarding call-to-action labels and usage.
To be determined.
The W3C Web Accessibility Initiative (WAI) develops standards and support materials to help you understand and implement accessibility.
An off canvas is highly similar to a modal.
Please follow the best practices for modal dialogs from WAI-ARIA authoring practices 1.1.
Please also refer to these recommendations for dialogs from WAI-ARIA 1.1.
You may refer to these examples of modal dialogs from WAI-ARIA practices 1.1.