Discovering the maximum font size that can be displayed on a single line in CSS

I am working with a wrapper div tag that has the capability of adjusting its dimensions.

<div class="wrapper">
   <p class="inside-text">Some text</p>
</div>

How can I use CSS to set the font-size of inside-text to be as large as possible so that it fits on one line?

Answer №1

Unfortunately, it seems that achieving this solely through CSS is not possible to the best of my knowledge.

A widely used method in CSS for adjusting font-size to create a visually appealing text layout in responsive design is by utilizing media queries. You simply wait for the text to break at a specific width, then incorporate another media query. Quite entertaining!

For instance:

@media only screen and (max-width: 330px) {
    .inside-text { font-size: 1.1em; }
}
@media only screen and (max-width: 660px) {
    .inside-text { font-size: 1.3em; }
}
@media only screen and (max-width: 990px) {
    .inside-text { font-size: 1.5em; }
}

Similar to Pangloss’ suggestion mentioned in the preceding comments, embracing a javascript library like fittext.js could serve as an alternative solution.

Answer №2

Just a fun experiment: if you happen to know the exact length of your text beforehand (e.g. "some words" = 10) you can give this clever CSS-only solution a try (tested on Safari/Edge, see how it adapts when resizing the window)

http://codepen.io/anon/pen/yTtAPM

HTML

<p>Lorem ipsum</p>

CSS

p {
  margin: 0;
  padding: 0;
  white-space: nowrap;
  font-family: monospace;
  font-size: calc(100vw / .75 / 10);
}

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