Adjusting font sizes based on window dimensions

I am currently in the process of building a website that requires the inclusion of images along with corresponding headings and descriptions. When viewing the website in full screen, the heading displays on a single line. However, as the browser width decreases, the heading automatically shifts to two lines.

Here is how it appears in full screen mode:

And here is how it appears when the browser width is reduced:

I am seeking a way to dynamically decrease the size of the heading when the browser width is decreased. I have not been successful in finding relevant information on Google, possibly due to using incorrect search terms.

I am using Ruby on Rails with Bootstrap (2.3.2) to develop the website. Additionally, I am incorporating SASS and jQuery, although I am still relatively new to these technologies.

htmlcssruby-on-railstwitter-bootstrapweb

Answer №1

To achieve this effect, utilize the power of CSS with the @media operator: 

h1 {
    font-size: 30px;
}

@media screen and (max-device-width : 400px)
{
  h1
  {
    font-size:20px;
  }
}

@media screen and (min-device-width : 600px)
{
  h1, div, etc
  {
    /* apply any desired CSS rules */
  }
}


Be sure to explore these helpful resources as well:
auto resize text (font size) when resizing window?

http://www.w3.org/TR/css3-mediaqueries/

Answer №2

Using CSS media queries, bootstraps are able to adjust styles accordingly. You can find detailed documentation on how bootstrap uses media queries here: http://getbootstrap.com/css/#grid-media-queries For a quick lesson on media queries, check out this crash course:

If you want to customize your styles based on screen size, add something like this to your application.css.scss:

@media (min-width: @screen-md) {
  h1{font-size: 14px}
}
  • Replace "h1" with the appropriate heading tag
  • Make sure you are targeting the correct min-width

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