Quick Start

Go to the "Flexbox (Flex Layout)" tool on HeronTool. Configure container properties in the left panel, such as display: flex, flex-direction, justify-content, align-items, and the right side renders the preview in real time. Adjust the number of child items and their flex-grow, flex-shrink, flex-basis values to observe layout changes.

Generate and Export

  1. Configure container and child styles, then click the "Generate Code" button when satisfied.
  2. The tool automatically generates the corresponding CSS snippet, including -webkit- prefixes for older browsers.
  3. Copy the code to your project or download the style file directly.

FAQ

Q: How to quickly achieve horizontal and vertical centering?
A: Set the parent container to display: flex; justify-content: center; align-items: center;.

Q: What if child items have unequal widths?
A: Adjust each child's flex-grow value; larger values occupy more space.

Q: Preview differs from actual browser rendering?
A: Check if the browser supports Flexbox; use the latest Chrome or Firefox. The tool has generated compatible code.