Visual polish · Lesson 7 of 8 · 7 minutes

Visual polish: Consistent radii

A small radius system keeps related controls consistent without making every surface look like a pill.

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Your objectives

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1
Build consistent radii
Build this first target: :root with --radius: 0.5rem. Keep the selector relationships intact and inspect the preview.
Hint & worked example
A small radius system keeps related controls consistent without making every surface look like a pill.
The requested selectors and declarations exist outside comments.
```
:root { --radius: 0.5rem; }
```
Common mistake to avoid: If the page fits one desktop viewport, no narrower viewport needs checking.
2
Extend the consistent radii example
Extend your file to include: :root with --radius: 0.5rem; .card with border-radius: var(--radius). Keep the selector relationships intact and inspect the preview.
Hint & worked example
A small radius system keeps related controls consistent without making every surface look like a pill.
The requested selectors and declarations exist outside comments.
```
:root { --radius: 0.5rem; }
.card { border-radius: var(--radius); }
```
Common mistake to avoid: Hiding all overflow always makes content accessible.
3
Verify the complete consistent radii pattern
Finish the pattern with: :root with --radius: 0.5rem; .card with border-radius: var(--radius); button with border-radius: var(--radius). Keep the selector relationships intact and inspect the preview.
Hint & worked example
A small radius system keeps related controls consistent without making every surface look like a pill.
The requested selectors and declarations exist outside comments.
```
:root { --radius: 0.5rem; }
.card { border-radius: var(--radius); }
button { border-radius: var(--radius); }
```
Common mistake to avoid: If the page fits one desktop viewport, no narrower viewport needs checking.

Understand the pattern

A small radius system keeps related controls consistent without making every surface look like a pill.

Misconceptions to reject

If the page fits one desktop viewport, no narrower viewport needs checking.
Hiding all overflow always makes content accessible.

The preview is a sanitized subset, not a full browser compatibility test.

Worked example and expected result

:root { --radius: 0.5rem; }
.card { border-radius: var(--radius); }
button { border-radius: var(--radius); }

A small radius system keeps related controls consistent without making every surface look like a pill.

Try a variation

Adapt the final example to a different project name while retaining its structure and relationships. A different context still needs a real browser and accessibility check.

Explain it

Which statement correctly explains consistent radii?Hiding all overflow always makes content accessible.A small radius system keeps related controls consistent without making every surface look like a pill.If the page fits one desktop viewport, no narrower viewport needs checking.

Apply it elsewhere

You reuse consistent radii in a different project. What must still be verified?The resulting layout, focus behavior, and readability at the target viewport sizes.Nothing; passing a single exercise guarantees every future use.Only whether the source code has the same number of lines.

Keep the momentum.

Complete the lab, then explain and apply the pattern.

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