CSS Flexbox Playground

Experiment with CSS Flexbox properties visually. Adjust settings and see the layout update in real time. Copy the generated CSS.

Container Properties

Preview
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Generated CSS
.container {
  display: flex;
  flex-direction: row;
  justify-content: flex-start;
  align-items: stretch;
  flex-wrap: nowrap;
  gap: 8px;
}

About CSS Flexbox Playground

This interactive CSS Flexbox playground lets you experiment with all major flexbox container properties and instantly see the result. Adjust flex-direction, justify-content, align-items, flex-wrap, align-content, and gap to understand how each property affects your layout.

Flexbox Properties Explained

  • flex-direction — Sets the main axis: row (horizontal) or column (vertical)
  • justify-content — Aligns items along the main axis
  • align-items — Aligns items along the cross axis
  • flex-wrap — Controls whether items wrap to new lines
  • align-content — Aligns wrapped lines (only applies when flex-wrap is enabled)
  • gap — Sets spacing between flex items

When to Use Flexbox

Flexbox is ideal for one-dimensional layouts — arranging items in a single row or column. Use it for navigation bars, card layouts, form controls, centering content, and responsive designs. For two-dimensional layouts (rows and columns simultaneously), consider CSS Grid instead.