Preserve QOutlook HTML EML bodies

src/styles.css

@@ -1693,6 +1693,50 @@ button {
   font-size: 15px;
 }
 
+.message-html-body {
+  max-width: 840px;
+  overflow-x: auto;
+  color: #111827;
+  font-size: 15px;
+  line-height: 1.58;
+}
+
+.message-html-body :where(p, ul, ol, blockquote, pre, table) {
+  margin: 0 0 12px;
+}
+
+.message-html-body :where(h1, h2, h3, h4, h5, h6) {
+  margin: 18px 0 10px;
+  color: #111827;
+  line-height: 1.25;
+}
+
+.message-html-body :where(ul, ol) {
+  padding-left: 22px;
+}
+
+.message-html-body table {
+  width: max-content;
+  max-width: 100%;
+  border-collapse: collapse;
+}
+
+.message-html-body :where(th, td) {
+  padding: 6px 8px;
+  border: 1px solid #d7dce5;
+  text-align: left;
+  vertical-align: top;
+}
+
+.message-html-body img {
+  max-width: 100%;
+  height: auto;
+}
+
+.message-html-body a {
+  color: #0f5fae;
+}
+
 .attachments-panel {
   max-width: 760px;
   margin-top: 24px;