Template:Clickable button/styles.css

.cdx-button--short-label {
	min-width: 32px; /* @min-size-interactive-pointer as mentioned by Codex doc */
}
.cdx-button--word-wrap {
	max-width: none;
    white-space: normal;
    word-wrap: break-word;
}
.cdx-button__icon {
	display: inline-block;
	height: 1.25em;
	min-height: 20px;
	min-width: 20px;
	width: 1.25em;
}