wp-calypso/client/me/reauth-required/security-key-form.scss

.security-key-form__verification-code-form {
	.button {
		width: 100%;

		&:not(:first-child) {
			margin-top: 20px;
		}
	}
}
.security-key-form__add-wait-for-key {
	text-align: center;

	.spinner {
		margin-bottom: 1em;
	}

	p {
		margin-bottom: 0.5em;
	}
}

.security-key-form__add-wait-for-key-heading {
	font-weight: 600;
}