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visibility-responsive

Visibility and responsive helpers

Last reviewed May 28, 2026 Content v20260528
Track mode
iframe_html
Means
HTML preview sandbox
Reading
~1 min
Level
intermediate

This lesson

This lesson teaches Visibility and responsive helpers—the ideas, syntax, and habits you need before moving on in Foundation.

Traffic is predominantly mobile—layouts that only work on desktop fail users and metrics.

You will apply Visibility and responsive helpers in contexts like: Large marketing sites, email-adjacent layouts, and legacy responsive redesigns.

Read the lesson, edit HTML/CSS in the playground, press Run to preview, then answer the lesson MCQs.

When the previous lesson's MCQs feel easy and you can explain Visibility and responsive helpers in your own words.

Show and hide content per breakpoint without writing custom media queries: show-for-small-only, hide-for-medium, show-for-large, and similar classes toggle display at Foundation’s breakpoints.

Practical usage

  • Mobile-only nav toggle label vs desktop horizontal menu
  • Supplementary sidebar promo visible only on large screens
  • Print helpers: show-for-print, hide-for-print

Prefer restructuring with the XY grid when possible—visibility helpers are for deliberate device-specific chrome, not fixing layout mistakes.

Important interview questions and answers

  1. Q: show-for-medium-only vs hide-for-small?
    A: -only variants limit visibility to a single breakpoint band; non-only classes often mean “from this size up” or “down”—check Foundation docs for the exact media query each class maps to.
  2. Q: Accessibility concern with hidden content?
    A: Screen readers may still access off-screen markup; use aria-hidden and thoughtful DOM order, not only display:none helpers.

Self-check

  1. Which class hides an element on medium viewports but shows it on small?
  2. When should you fix layout with cells instead of hide/show classes?

Interview tip Lesson completion confidence

Can you explain this lesson in 30 seconds without reading notes?

Not saved yet.

Playground

Runs in your browser in a sandboxed frame. Backend runners appear when this track’s profile allows them.

Check yourself

Multiple choice — immediate feedback.

Discussion

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Starter discussion topics

  • show-for-medium only—risk?
  • Hide vs screen readers?

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