| <!DOCTYPE html> |
| <html> |
| <head> |
| <title>CSS Motion Path: ray paths with contain</title> |
| <style> |
| #container { |
| width: 300px; |
| height: 300px; |
| } |
| #target { |
| position: relative; |
| left: 100px; |
| top: 100px; |
| width: 100px; |
| height: 100px; |
| background-color: lime; |
| /* ray length is sqrt(150^2 + 0^2); contain does -max(100, 100) / 2; */ |
| /* the result length is 100. sin(45deg) * length = 70.71; */ |
| transform: rotate(-45deg) translate(100px); |
| } |
| </style> |
| </head> |
| <body> |
| <div id="container"> |
| <div id="target"></div> |
| </div> |
| </body> |
| </html> |