Flex‑Basis Calculator & Visualizer - Online CSS Flex
Enter container width, number of items, gap, and flex‑basis. See the resulting sizes instantly. Plan your flex layout.
UD5 Toolkit
Enter container width, number of items, gap, and flex‑basis. See the resulting sizes instantly. Plan your flex layout.
Place two containers side by side to see how inline‑flex differs from flex. Understand block vs inline formatting.