Answer
The aspect-ratio property supplies a preferred width-to-height ratio. • It participates in automatic size calculations. • A replaced element may also use its natural aspect ratio. • Minimum and maximum size constraints can override the preferred ratio.
💡 Simple Example
.video { width: 100%; aspect-ratio: 16 / 9; }
⚡ Quick Revision
aspect-ratio supplies a preferred proportional relationship between width and height.