Replacing ProximaNova-Light on Windows-based computers

Replacing ProximaNova-Light on Windows-based computers

ProximaNova-Light, which is used for primary page headings on the university homepage and UChicago Sites, unfortunately does not render very well on Windows-based computers.

To address this problem, we use a little bit of jQuery and CSS to replace ProximaNova-Light with ProximaNova-Regular for site visitors browsing on a Windows-based computer.

The jQuery

Using the following jQuery snippet, we detect the operating system of the visitor's computer and add that as a class to the page's <html> element ("Win32" for 32-bit systems and "Win64" for 64-bit systems).

  $("html").addClass( navigator.platform );


In our stylesheet, we've written an override rule that sets the font-family for our main page headers to ProximaNova-Regular when the page's <html> element has a class of either "Win32" or "Win64".


h2 {
  font-family: 'ProximaNova-Light', 'Helvetica Neue', Helvetica, Arial, sans-serif;

With the override rule

h2 {
  font-family: 'ProximaNova-Light', 'Helvetica Neue', Helvetica, Arial, sans-serif;

html.Win32 h2,
html.Win64 h2 {
  font-family: 'ProximaNova-Regular', 'Helvetica Neue', Helvetica, Arial, sans-serif;

With these two pieces in place, our site visitors who use Windows-based computers will see our main page headings in ProximaNova-Regular rather than ProximaNova-Light.


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