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About CSS Flexbox Cheat Sheet
The Interactive CSS Flexbox Layout Sandbox & Visual Cheat Sheet provides real-time interactive toggles for all Flexbox container properties (`flex-direction`, `justify-content`, `align-items`, `flex-wrap`, `gap`) and flex item properties (`flex-grow`, `flex-shrink`, `flex-basis`, `align-self`).
How to Use CSS Flexbox Cheat Sheet
Step 1
Click flex container buttons to toggle alignment, direction, and wrapping.
Step 2
Select individual flex items to adjust `flex-grow`, `flex-shrink`, or `align-self`.
Step 3
Observe real-time visual layout changes in the preview stage.
Step 4
Click "Copy Flexbox CSS".
Practical Use Cases for CSS Flexbox Cheat Sheet
Mastering & Debugging CSS Flexbox Alignment
Visually understand how `justify-content: space-between` and `align-items: center` distribute space along the main and cross axes in real time.
Calculating Proportional `flex-grow` and `flex-shrink` Ratios
Simulate how flex items grow and shrink when container widths expand or contract.
Input & Output Examples
Centering Content Perfectly with Flexbox
Options: Direction: `row`, Justify: `center`, Align: `center`
`display: flex;\njustify-content: center;\nalign-items: center;`
Key Features & Performance
- ✓Interactive visual playground with live add/remove item buttons.
- ✓Controls for: `flex-direction`, `justify-content`, `align-items`, `align-content`, `flex-wrap`, `gap`, `flex-grow`, `flex-shrink`, `flex-basis`, `order`.
- ✓Visual axis guides indicating the active Main Axis and Cross Axis directions.
- ✓100% Client-Side memory execution.
- ✓1-Click Copy configured Flexbox CSS.
Key Terminology & Definitions
Main Axis vs Cross Axis
The primary direction along which flex items are laid out (defined by `flex-direction`), and the perpendicular axis along which cross alignment occurs.
`flex: 1 1 auto` Shorthand
The standard shorthand representing `flex-grow: 1`, `flex-shrink: 1`, and `flex-basis: auto`.