Flex item cannot shrink

Diagnosis

What this finding means

A flex item keeps its automatic minimum size and cannot shrink around long content.

A finding is not a verdict. Check the displayed evidence and the design intent before changing production code.

Detection

How CSS Doctor detects it

1. CSS Doctor isolates the pasted HTML and CSS in a sandboxed iframe.
2. Static rules inspect source structure; runtime rules measure the rendered result.
3. Evidence is ranked by intent, severity, confidence, affected area, and fix safety.

Before / After

Minimal example

.row { display: flex; }
.main { flex: 1; }

.row { display: flex; }
.main { flex: 1; min-width: 0; }

The example is a starting point, not a universal patch. CSS Doctor previews Tier A and B changes before applying them and never auto-applies Tier C guidance.

Limitations

Limits and manual checks

Components that must preserve intrinsic width may need a layout change.

• Production stylesheets not pasted into the tool are not fetched.
• JavaScript is never executed from user input.
• Verify the result at all breakpoints and with keyboard input.