If you're using page builders to build websites that don't offer separate styling control to style the Inner Content Typography, then you can use these CSS snippets to style them as per your needs.
/* CSS Snippets to Style WordPress Body Typography */
body h1 {
font-size: 1.6em;
font-weight: 800;
text-transform: none;
color: #000000;
}
body h2 {
margin-top: 50px;
margin-bottom: 25px;
font-family: Poppins;
font-size: 1.5em;
font-weight: 700;
color: #000000;
text-transform: none;
line-height: 30px;
}
body h3 {
margin-top: 25px;
margin-bottom: 25px;
font-family: Poppins;
font-size: 1.3em;
font-weight: 600;
color: #000000;
text-transform: none;
line-height: 30px;
}
body h4 {
margin-top: 25px;
margin-bottom: 25px;
font-family: Poppins;
font-size: 1.2em;
font-weight: 600;
color: #000000;
text-transform: none;
line-height: 30px;
}