Responsive sizing works best when each unit has a clear role. Convert design spacing and type to rem from the project root size, use CSS clamp() for headings that should scale between a minimum and maximum font size, then use vw/vh calculations for hero blocks and viewport-relative sections. Chakan handles only synthetic dimensions and CSS parameters; it does not store design files, screenshots, customer pages, or private UI specs.
CSS clamp / px rem / vw vh / responsive layout
Responsive CSS font-size, rem, vw/vh, and layout planning
A local-first workflow for px-to-rem conversion, CSS clamp font-size formulas, viewport units, aspect ratios, and screen-density checks.
px rem converterCSS clamp font size calculatorviewport unit calculatorvw vh calculatorresponsive font size calculatorfluid typography calculator
Separate type, spacing, and viewport layout
rem is best for stable component sizing, clamp is best for fluid type within defined bounds, and vw/vh is best for large visual regions. Mixing them without checks can create mobile overflow or oversized desktop headings.
- Must Do: keep public examples synthetic: sizes, root font size, viewport width, and CSS parameters only.
- Must Do: prefer rem plus clamp for type; reserve vw/vh for layout regions.
- Should Do: regression-test long words, CJK text, buttons, and dense cards.
Common lookup scenarios
Convert design spacing and font sizes from px to rem
Generate CSS clamp() formulas for headings and key text
Convert hero or background blocks to vw/vh and back-calculate mobile pixels
Review screenshots and UI density with aspect-ratio and screen-PPI helpers
Recommended workflow
- Confirm the project root font size and convert design measurements to rem
- Set min/max font sizes and viewport bounds for clamp()
- Back-calculate vw/vh blocks at mobile and desktop viewports
- Verify wrapping, line-height, button labels, and overflow at real breakpoints
Related tool entries
A local-first workflow for px-to-rem conversion, CSS clamp font-size formulas, viewport units, aspect ratios, and screen-density checks.
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Calculate screen PPI, pixel pitch, physical width and height, and display-density level from resolution and diagonal size.
LookupToolChakanFAQ
Responsive sizing works best when each unit has a clear role. Convert design spacing and type to rem from the project root size, use CSS clamp() for headings that should scale between a minimum and maximum font size, then use vw/vh calculations for hero blocks and viewport-relative sections. Chakan handles only synthetic dimensions and CSS parameters; it does not store design files, screenshots, customer pages, or private UI specs.
Should responsive type use rem, vw, or clamp?
Use rem for stable component sizing, clamp for bounded fluid headings, and avoid using raw vw for all body text.
Does this read my design files or screenshots?
No. Public examples use only synthetic sizing and CSS parameters.
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