diff --git a/app/javascript/src/styles/base/010_reset.scss b/app/javascript/src/styles/base/010_reset.scss
index b27494803..b928b2506 100644
--- a/app/javascript/src/styles/base/010_reset.scss
+++ b/app/javascript/src/styles/base/010_reset.scss
@@ -1,3 +1,11 @@
+html {
+  // Disable font boosting on mobile. By default, when desktop mode is enabled
+  // on mobile, mobile browsers will automagically increase the size of text.
+  // Usually they do so poorly, making things like headers smaller than body
+  // text, which breaks the layout.
+  text-size-adjust: none;
+}
+
 *, ::before, ::after {
   box-sizing: border-box;
 }