What are the steps to ensure that text stretches across the entire width of its container?

If the div has a width of 300px, how can I adjust the font size of the text so that it always occupies 100% of the width? The challenge is that the text lengths vary due to dynamic titles generated by PHP. Smaller texts need to have much smaller fonts than longer texts.

Answer №1

That solution worked like a charm for me

div {
  text-align: justify;
}

div:after {
  content: "";
  display: inline-block;
  width: 100%;
}

However, I had to manually set the height of my element when using this method to prevent an extra empty line.

I found this helpful tip on Force single line of text in element to fill width with CSS

You can also check out more details here:

Answer №2

After implementing @svassr's suggestion along with utilizing font-size: *vw, I was able to achieve the desired outcome. Here is the updated code:

div {
  text-align: justify;
  font-size: 4.3vw;
}

div:after {
  content: "";
  display: inline-block;
  width: 100%;
}

The usage of vw in the above snippet refers to the viewport width, specifically setting the font size to 4.3% of the viewport width. Experiment with this value to ensure your text fits on a single line. Thanks to @svassr's solution, this approach worked perfectly for me!

Answer №3

It seems like what you're looking to achieve may not be possible. Using text-align:justify will align paragraph text to the right side, but adjusting the width of a header to be 100% is not feasible.

Update: However, there is a JavaScript library that claims to accomplish this. You can check it out at . Nevertheless, no solution using pure CSS currently exists for this particular issue.

Answer №4

I have developed a unique web component dedicated to this purpose. If you're interested, you can find it here:
https://github.com/pomber/full-width-text

Feel free to explore the live demo as well:

To utilize this component, simply follow this format:

<full-width-text>Enter your text here</full-width-text>

Answer №5

I have created a simple scaling function using CSS transform instead of relying on font-size.

Check out the blog post for more details:

Here is the code snippet:

function scaleHeader() {
  var scalable = document.querySelectorAll('.scale--js');
  var margin = 10;
  for (var i = 0; i < scalable.length; i++) {
    var scalableContainer = scalable[i].parentNode;
    scalable[i].style.transform = 'scale(1)';
    var scalableContainerWidth = scalableContainer.offsetWidth - margin;
    var scalableWidth = scalable[i].offsetWidth;
    scalable[i].style.transform = 'scale(' + scalableContainerWidth / scalableWidth + ')';
    scalableContainer.style.height = scalable[i].getBoundingClientRect().height + 'px';
  }
}

View the working demo here: https://codepen.io/maciejkorsan/pen/BWLryj

Answer №6

One solution to avoid the extra line issue is by incorporating margin-bottom into the div styling.

(This example uses SCSS)

div {
    text-align: justify;
    margin-bottom: -1em !important;

    &:after {
        content: "";
        display: inline-block;
        width: 100%;
    }
}

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