Spacing With Header Blocks

Hi Mark,

In the past, when I wanted to "tighten up" the space between text and header fonts, you had me add the following code:

#eb .eb-entry-article .ebd-block h1,
#eb .eb-entry-article .ebd-block h3 {
margin-bottom: 0;},
#eb .eb-entry-article .ebd-block h2 {
margin-bottom: 0;}

However, when I try to add #eb .eb-entry-article .ebd-block h4 {
margin-bottom: 0;}

to this, it does not adjust the spacing. How do I add no margin to all header styles?

The article in question is at https://teamfitforduty.com/blog/a-simple-primer-to-keto-and-intermittent-fasting-for-law-enforcement

Thank you!