Example: 24px → 1.5em (base 16px)
Example: 1.5em → 24px (base 16px)
| Px | Em | Common Uses | Actions |
|---|
Px (Pixels):An absolute unit with a fixed size that does not change with browser settings. 1px equals one physical pixel on the screen.
Em:A relative unit based on the font size of the current element. 1em equals the font size of the current element. If the current element does not have a set font size, it inherits from its parent element.
Conversion Formulas:
• Px → Em: em = px ÷ base font size
• Em → Px: px = em × base font size
Usage Recommendations:Using em units makes your page more responsive and accessible, allowing users to adjust font sizes through browser settings. The default browser font size is typically 16px.