diff --git a/www/slide/slide.css b/www/slide/slide.css
index 6bf7e459b..0fcc0951c 100644
--- a/www/slide/slide.css
+++ b/www/slide/slide.css
@@ -89,7 +89,7 @@ body .CodeMirror-focused .cm-matchhighlight {
   flex: 1;
   overflow: hidden;
 }
-.preview .cp div#modal {
+.preview .cp div#modal:not(.shown) {
   position: relative;
   top: auto;
   left: auto;
@@ -97,10 +97,10 @@ body .CodeMirror-focused .cm-matchhighlight {
   display: block;
   height: 100%;
 }
-.preview .cp div#modal #content .slide-container {
+.preview .cp div#modal:not(.shown) #content .slide-container {
   width: 100%;
 }
-.preview .cp div#modal #content .slide-frame {
+.preview .cp div#modal:not(.shown) #content .slide-frame {
   width: 50vw;
   height: 28.125vw;
   max-height: 100vh;
diff --git a/www/slide/slide.js b/www/slide/slide.js
index ed0f0ab2c..fd5277853 100644
--- a/www/slide/slide.js
+++ b/www/slide/slide.js
@@ -38,7 +38,7 @@ define([
         }
     };
 
-    var updateFontSize = Slide.updateFontSize = function() {
+    var updateFontSize = Slide.updateFontSize = function () {
         // 20vh
         // 20 * 16 / 9vw
         var wbase = 20;
@@ -130,6 +130,7 @@ define([
             $pad.addClass('fullscreen');
             $('#iframe-container').addClass('fullscreen');
             $('.top-bar').hide();
+            updateFontSize();
             return;
         }
         window.location.hash = window.location.hash.replace(/\/present$/, '/');
@@ -140,10 +141,10 @@ define([
         $('#iframe-container').removeClass('fullscreen');
         $('.top-bar').show();
         $modal.removeClass('shown');
+        updateFontSize();
     };
 
     Slide.update = function (content, init) {
-        console.log(content, init);
         updateFontSize();
         //if (!init) { return; }
         if (!content) { content = ''; }
diff --git a/www/slide/slide.less b/www/slide/slide.less
index 1a6d6e333..ccd4c454d 100644
--- a/www/slide/slide.less
+++ b/www/slide/slide.less
@@ -97,7 +97,7 @@ body {
 .preview .cp {
     flex: 1;
     overflow: hidden;
-    div#modal {
+    div#modal:not(.shown) {
         position: relative;
         top: auto;
         left: auto;