Question 1

How do I add a hover effect to a CSS button?

Accepted Answer

Use the :hover pseudo-class and place the transition property on the base state, not the hover rule. Common effects: opacity, transform: translateY(-2px), box-shadow changes.

Question 2

What is the difference between a button element and an anchor styled as a button?

Accepted Answer

Use button for on-page actions (submit, modal, JS). Use anchor a href for navigation. Screen readers announce them differently and keyboard behaviour differs.

Question 3

How do I make a full-width button?

Accepted Answer

Add width: 100% to the button. If using display: inline-flex, also switch to display: flex for the full-width version.

Question 4

How do I remove the default button styles across all browsers?

Accepted Answer

Set border: none; background: none; padding: 0; cursor: pointer; font: inherit; -webkit-appearance: none; appearance: none;

Question 5

What is a good button border-radius value?

Accepted Answer

4–6px for conservative professional styles. 8–12px for modern SaaS products. 999px for a full pill shape. Consistency across your design system matters most.

Question 6

How do I style a loading state for a button?

Accepted Answer

Add a CSS spinner via ::after pseudo-element. Set pointer-events: none and opacity: 0.7 on the button. Use aria-busy='true' for accessibility.

Question 7

Should I use padding or min-height for button sizing?

Accepted Answer

Use both. Padding drives visual size. Set min-height: 44px and min-width: 44px to meet WCAG 2.5.5 touch target guidelines.

Question 8

How do I create a button group where buttons share borders?

Accepted Answer

Use a flex container with gap: 0. Apply border-radius only to first-child and last-child corners. Remove border-right on all but the last to avoid double borders.

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