diff --git a/customize.dist/src/less2/include/app-print.less b/customize.dist/src/less2/include/app-print.less
index 6ff8964eb..e4c344b20 100644
--- a/customize.dist/src/less2/include/app-print.less
+++ b/customize.dist/src/less2/include/app-print.less
@@ -21,7 +21,6 @@
                 }
                 * {
                     visibility: hidden;
-                    height: auto;
                     max-height: none;
                 }
                 .cp-app-slide-viewer #cp-app-slide-print {
diff --git a/www/slide/app-slide.less b/www/slide/app-slide.less
index 09abe9fb2..a1a27a7b0 100644
--- a/www/slide/app-slide.less
+++ b/www/slide/app-slide.less
@@ -164,6 +164,14 @@
         #cp-app-slide-editor-container {
             display: none;
         }
+        #cp-app-slide-print {
+            .cp-app-slide-frame {
+                pre.mermaid > svg {
+                    height: 100%;
+                    width: 100%;
+                }
+            }
+        }
     }
     #cp-app-slide-print {
         position: relative;
@@ -336,8 +344,8 @@
                 * {
                     max-width: unset;
                     max-height: unset;
-                    font-size: unset;
                     line-height: unset;
+                    font-size: 87.5%;
                 }
             }
             ul, ol {