KITFORMA · EDITORIAL ANSWER
Why does a long code block blow out a two-column CSS grid?
KitForma editorial guide. A bare 1fr track can retain a content-based minimum.
Step-by-step answer
A bare 1fr track can retain a content-based minimum. Use
grid-template-columns: minmax(0,1fr) 16rem where the main track must shrink, and give the code block its own horizontal overflow. Verify long unbroken lines and a small viewport. Decide how the sidebar collapses at smaller widths; reducing the main track’s minimum does not create enough physical space for every fixed column.Sources and verification
Sources checked:
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