51 lines
1.7 KiB
Markdown
51 lines
1.7 KiB
Markdown
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---
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title: Image Opacity and Transparency
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localeTitle: Imagen de opacidad y transparencia
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---
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## Imagen de opacidad y transparencia
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La propiedad de `opacity` permite hacer que una imagen sea transparente al reducir su `opacity` .
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`Opacity` toma un valor entre 0.0 y 1.0.
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1.0 es el valor predeterminado para cualquier imagen. Es totalmente opaco.
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Ejemplo
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```css
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img {
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opacity: 0.3;
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}
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```
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Include ```filter: alpha(opacity=x)``` for IE8 and earlier. The x takes a value from 0-100.
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```
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css img { opacidad: 0,3; filtro: alfa (opacidad = 30); }
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```
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Here's an example of an image set to the parameters in the example above.
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You can pair ```opacity``` with ```:hover``` to create a dynamic mouse-over effect.
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Example:
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```
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css img { opacidad: 0,3; filtro: alfa (opacidad = 30); } img: hover { opacidad: 1.0; filtro: alfa (opacidad = 100); }
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```
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[A codepen example to show a transparent image turning opaque on hover](https://codepen.io/lvcoulter/full/JrzxXa/)
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<!--I cannot figure out how to embed a Codepen. I would really like to know-->
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You can create the opposite effect with less code since the image is 1.0 opacity by default
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Example:
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```
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css img: hover { opacidad: 0,3; filtro: alfa (opacidad = 30); } \`\` \` [Un ejemplo de código para mostrar la transparencia en el mouse-over](https://codepen.io/lvcoulter/full/xXBQoR/)
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#### Más información:
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\-w3schools.com [CSS Opacidad / Transparencia](https://www.w3schools.com/css/css_image_transparency.asp)
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\-MDN documentos web [opacidad](https://developer.mozilla.org/en-US/docs/Web/CSS/opacity)
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