Template:Translation header/sandbox/styles.css 

.wst-translation-header-sandbox .interwiki-info {
	display:none;
}

.wst-header-sandbox.wst-translation-header-sandbox .wst-header-mainblock {
	border:1px solid var(--border-color-content-removed, #FDD017);
	background-color: var(--background-color-content-removed, #FFB);
	color: var(--color-base, #202122);
}

.wst-header-sandbox.wst-translation-header-sandbox .wst-header-notes {
	border-bottom:1px solid var(--border-color-notice, #FDD017);
	background-color: var(--background-color-neutral, #FFF8DC);
	color: var(--color-base, #202122);
}