diff --git a/webmail/lib.ts b/webmail/lib.ts
index 44da000..f463b39 100644
--- a/webmail/lib.ts
+++ b/webmail/lib.ts
@@ -139,12 +139,12 @@ ensureCSS('.keyword.keywordCollapsed', {opacity: .75}),
 
 // Generic styling.
 ensureCSS('*', {fontSize: 'inherit', fontFamily: "'ubuntu', 'lato', sans-serif", margin: 0, padding: 0, boxSizing: 'border-box'})
-ensureCSS('.mono, .mono *', {fontFamily: "'ubuntu mono', monospace" })
+ensureCSS('.mono, .mono *', {fontFamily: "'ubuntu mono', monospace"})
 ensureCSS('table td, table th', {padding: '.15em .25em'})
 ensureCSS('.pad', {padding: '.5em'})
 ensureCSS('iframe', {border: 0})
 ensureCSS('img, embed, video, iframe', {backgroundColor: 'white', color: 'black'})
-ensureCSS(':root', {backgroundColor: styles.backgroundColor, color: styles.color })
+ensureCSS(':root', {backgroundColor: styles.backgroundColor, color: styles.color})
 ensureCSS('a', {color: ['rgb(9, 107, 194)', 'rgb(99, 182, 255)']})
 ensureCSS('a:visited', {color: ['rgb(7, 4, 193)', 'rgb(199, 99, 255)']})
 
diff --git a/webmail/webmail.js b/webmail/webmail.js
index 96b6e42..7a5abec 100644
--- a/webmail/webmail.js
+++ b/webmail/webmail.js
@@ -3909,7 +3909,7 @@ const newMsgView = (miv, msglistView, listMailboxes, possibleLabels, messageLoad
 			Escape: cmdViewClose,
 		};
 		const attachmentsArrowStyle = css('attachmentsArrow', { color: styles.backgroundColor, backgroundColor: styles.color, width: '2em', height: '2em', borderRadius: '1em', lineHeight: '2em', textAlign: 'center', fontWeight: 'bold' });
-		const attachmentsIframeStyle = css('attachmentsIframe', { flexGrow: 1, boxShadow: styles.boxShadow, backgroundColor: styles.popupBackgroundColor, margin: '0 5em' });
+		const attachmentsIframeStyle = css('attachmentsIframe', { flexGrow: 1, boxShadow: styles.boxShadow, margin: '0 5em' });
 		let content;
 		const popupRoot = dom.div(css('attachmentsOverlay', { position: 'fixed', left: 0, right: 0, top: 0, bottom: 0, backgroundColor: styles.overlayBackgroundColor, display: 'flex', flexDirection: 'column', alignContent: 'stretch', padding: '1em', zIndex: zindexes.attachments }), function click(e) {
 			e.stopPropagation();
diff --git a/webmail/webmail.ts b/webmail/webmail.ts
index bb50bcf..1b7c521 100644
--- a/webmail/webmail.ts
+++ b/webmail/webmail.ts
@@ -3278,7 +3278,7 @@ const newMsgView = (miv: MsgitemView, msglistView: MsglistView, listMailboxes: l
 		}
 
 		const attachmentsArrowStyle = css('attachmentsArrow', {color: styles.backgroundColor, backgroundColor: styles.color, width: '2em', height: '2em', borderRadius: '1em', lineHeight: '2em', textAlign: 'center', fontWeight: 'bold'})
-		const attachmentsIframeStyle = css('attachmentsIframe', {flexGrow: 1, boxShadow: styles.boxShadow, backgroundColor: styles.popupBackgroundColor, margin: '0 5em'})
+		const attachmentsIframeStyle = css('attachmentsIframe', {flexGrow: 1, boxShadow: styles.boxShadow, margin: '0 5em'})
 
 		let content: HTMLElement
 		const popupRoot = dom.div(