title: Where do default fonts come from?
body: <p>I have a front-end question about web development. I have a project in Django and in it I use JavaScript lib to draw charts on the web pages. The font on the chart is different from this on the web page, and I wanted to make them similar.</p>
  <p>I found out that in different browsers I have the same fonts in the body: <code>font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, &quot;Helvetica Neue&quot;, Arial,&quot; Noto Sans&quot;, sans-serif,&quot; Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;, &quot;Segoe UI Symbol&quot;, &quot;Noto Color Emoji&quot;;</code></p>
  <p>My question is where they come from? Is that per browser setting / per system or something more general? I'm asking because I wanted to just set the same font family on the chart, and so I wonder is that possible that on some browser web page font family will be different?</p>