funky-framadate-front/src/styles/partials/_typo.scss

h1,
h2,
h3,
h4,
h5,
h6 {
	@extend .title;
}

h1 {
	@extend .is-1;

	&::after {
		background-color: $primary_color;
		height: 2px;
	}
}

h2 {
	@extend .is-2;
}

h3 {
	@extend .is-3;
}

h4 {
	@extend .is-4;
}