| 1 | <!DOCTYPE html> |
| 2 | <html lang="es"> |
| 3 | |
| 4 | <head> |
| 5 | <meta charset="UTF-8"> |
| 6 | <meta name="viewport" |
| 7 | content="width=device-width"> |
| 8 | <title> |
| 9 | Animación horizontal |
| 10 | </title> |
| 11 | <style> |
| 12 | .sprite { |
| 13 | position: fixed; |
| 14 | font-size: 3rem; |
| 15 | } |
| 16 | </style> |
| 17 | </head> |
| 18 | |
| 19 | <body> |
| 20 | <h1>Animación horizontal</h1> |
| 21 | <output id="carita" |
| 22 | class="sprite"> |
| 23 | 😄 |
| 24 | </output> |
| 25 | <script> |
| 26 | const REFRESCO = 5 |
| 27 | const VELOCIDAD = 0.5 |
| 28 | let x = 0 |
| 29 | setInterval(avanza, REFRESCO) |
| 30 | |
| 31 | function avanza() { |
| 32 | const y = innerHeight / 2 |
| 33 | const xMáxima = innerWidth |
| 34 | carita.style = |
| 35 | `left: ${x}px; bottom: ${y}px` |
| 36 | x = (x + VELOCIDAD) % xMáxima |
| 37 | } |
| 38 | </script> |
| 39 | </body> |
| 40 | |
| 41 | </html> |