How Can I Scale Font Size Proportionally to its Container Using CSS and SVG?

Adjusting Font Size to Container Dimensions Using CSS and SVG Techniques

Q: How can I set the font size within a container to maintain a constant size relative to the container's dimensions?

A: There are two primary approaches to address this challenge with CSS and SVG:

1. CSS with vw Unit:

If you wish to set the font size as a percentage of the viewport width, utilize the "vw" unit:

#mydiv {
  font-size: 5vw;
}

2. SVG Embedded in HTML:

Alternatively, you can embed SVG into HTML. Here's an example:

<svg viewBox="0 0 100 100">
  <text x="0" y="50" font-size="1">
    Text Data
  </text>
</svg>

In this case, the font size of "1" represents one one-hundredth of the size of the SVG element.

Additional Information:

Note that CSS calculations cannot be used to achieve this effect because percentages are interpreted relative to the inherited font size, not the container's size. While a unit like "bw" (box-width) would be useful for this purpose, it's not currently available in CSS.

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