--- a/browser/themes/shared/privatebrowsing/aboutPrivateBrowsing.css
+++ b/browser/themes/shared/privatebrowsing/aboutPrivateBrowsing.css
@@ -46,22 +46,26 @@ a:hover:active {
 a:visited {
   color: var(--color-blue-darker);
 }
 
 .about-content-container {
   max-width: 780px;
 }
 
-section.section-main {
+.section-main {
   margin-bottom: 48px;
   -moz-margin-start: var(--icon-margin);
   -moz-padding-start: 24px;
 }
 
+.section-main:last-child {
+  margin-bottom: 0;
+}
+
 p {
   line-height: 1.5em;
 }
 
 .list-row {
   overflow: auto;
 }