style.scss

.is-small-text {
	font-size: 0.875em;
}

.is-regular-text {
	font-size: 1em;
}

.is-large-text {
	font-size: 2.25em;
}

.is-larger-text {
	font-size: 3em;
}

// Don't show the drop cap when editing the paragraph's content. It causes a
// number of bugs in combination with `contenteditable` fields. The caret
// cannot be set around it, caret position calculation fails in Chrome, and
// typing at the end of the paragraph doesn't work.
.has-drop-cap:not(:focus)::first-letter {
	float: left;
	font-size: 8.4em;
	line-height: 0.68;
	font-weight: 100;
	margin: 0.05em 0.1em 0 0;
	text-transform: uppercase;
	font-style: normal;
}

p {
	// Break long strings of text without spaces so they don't overflow the block.
	overflow-wrap: break-word;
}

// Prevent the dropcap from breaking out of the box when a background is applied.
p.has-drop-cap.has-background {
	overflow: hidden;
}

p.has-background {
	padding: $block-bg-padding--v $block-bg-padding--h;
}

// Use :where to contain the specificity of this rule
// so it's easily overrideable by any theme that targets
// links using the a element.
// For example, this is what global styles does.
:where(p.has-text-color:not(.has-link-color)) a {
	color: inherit;
}