how to add a padding to top of page so page starts at bottom of menu bar
i am trying to add a padding to the top of the page so the menu bar does not cut off the featured image of the page.
i have tried these and nothing changes;
#main {
padding-top: 20;
margin-top: 20;
}
.site-header {
padding-top: 20;
margin-top: 20;
}