H2 Font Weight Changes Don’t Appear to Work

Hi,

I want to set my H2s to a font weight of “800” using the Roboto font. When I do this in customizer, it instantly show the H2 headings get thicker, as desired.

But once I close the customizer, the H2s go back to the default font weight of 600, at least in appearance.

For some reason my page source code does show:

WebFontConfig={google:{families:[“Roboto:300,400,600,800”]

After I saw that, I tried to add code manually into the additional css field as follows:

h2 {
  font-weight: 800;
}

Again, it appears thicker in customizer, though once saved goes back to default (and page source only indicates that a 300, 400, and 600 weight is being utilized.

Any idea why my desired font weight doesn’t seem to appear?

Thank you!