How Can I Zoom a Whole Webpage Proportionally Using Only CSS?

Enlarging an Entire Web Page with CSS

Question: How can I achieve the effect of pressing CTRL in Firefox, which proportionally enlarges the entire web page, using only CSS?

Answer:

To mimic the functionality of enlarging a web page using CTRL , consider leveraging the CSS zoom property. This property is supported in various browsers, including IE 5.5 , Opera, Safari 4, and Chrome.

Firefox is an exception, as it doesn't support the standard zoom property. As an alternative, you can use the proprietary -moz-transform property in Firefox 3.5.

CSS Code:

To achieve a 3x magnification, for example, you can use the following CSS code:

div.zoomed {
    zoom: 3;  /* Standard zoom property */
    -moz-transform: scale(3);  /* Firefox-specific transform property */
    -moz-transform-origin: 0 0;
}

Apply this CSS to the desired HTML element to enlarge its contents proportionally. Remember that Firefox requires the -moz-transform property, while other supported browsers use the standard zoom property.

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