CSS·Advanced·Coding·1 min read
Why use clamp for fluid sizing carefully?
Short interview answer
clamp combines a minimum, preferred fluid expression, and maximum. It reduces abrupt jumps, but viewport-only text scaling can weaken zoom behavior if constructed poorly. Keep accessible bounds and test text zoom and narrow screens.
Example
h1 { font-size: clamp(1.75rem, 1rem + 3vw, 3rem); }/* never smaller than 1.75rem, never larger than 3rem */Key takeaway
Explain the underlying mental model clearly, then support it with a concrete example and its trade-offs.