diff --git a/addons/web/static/src/webclient/actions/reports/report.scss b/addons/web/static/src/webclient/actions/reports/report.scss
index ea1292bfac328cbf313b2fef6d45b2547bf8887b..a60bc66ca2c5bf4356cdcf68c98b221d0afcc121 100644
--- a/addons/web/static/src/webclient/actions/reports/report.scss
+++ b/addons/web/static/src/webclient/actions/reports/report.scss
@@ -13,6 +13,36 @@ body {
     font-family: $o-default-report-font;
 }
 
+h1, h2, h3, h4, h5, h6, .h1, .h2, .h3, .h4, .h5, .h6 {
+    margin-bottom: 0.5rem;
+    font-weight: 500;
+    line-height: 1.2;
+}
+
+h1, .h1 {
+    font-size: 2.5rem;
+}
+
+h2, .h2 {
+    font-size: 2rem;
+}
+
+h3, .h3 {
+    font-size: 1.75rem;
+}
+
+h4, .h4 {
+    font-size: 1.5rem;
+}
+
+h5, .h5 {
+    font-size: 1.25rem;
+}
+
+h6, .h6 {
+    font-size: 1rem;
+}
+
 p, span, strong, em {
     line-height: 1.5;
 }