zotero/chrome/content/zotero-platform/mac/itemPane.css

#zotero-feed-item-addTo-button {
	margin: 5px 6px 3px;
	padding-left: 8px;
}

#zotero-feed-item-addTo-button button {
	margin: 0;
	-moz-appearance: none;
}
Fix feed item add-to button appearance on OS X 2016-04-05 06:14:46 +00:00			`#zotero-feed-item-addTo-button {`
			`margin: 5px 6px 3px;`
			`padding-left: 8px;`
			`}`

			`#zotero-feed-item-addTo-button button {`
			`margin: 0;`
			`-moz-appearance: none;`
			`}`