diff --git a/CHANGELOG.md b/CHANGELOG.md
index a9a8bca05..88ee1ba16 100755
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@ The links to individual versions below are to copies of the script with the upda
 
 ### v1.11.2
 
+**v1.11.2.3** *(2015-06-30)* - [[Firefox](https://raw.githubusercontent.com/ccd0/4chan-x/1.11.2.3/builds/4chan-X-noupdate.user.js "Firefox version")] [[Chromium](https://raw.githubusercontent.com/ccd0/4chan-x/1.11.2.3/builds/4chan-X-noupdate.crx "Chromium version")]
+- Add 'webkit' CSS class to document when WebKit engine is detected.
+- Various CSS-related bugfixes.
+
 **v1.11.2.2** *(2015-06-30)* - [[Firefox](https://raw.githubusercontent.com/ccd0/4chan-x/1.11.2.2/builds/4chan-X-noupdate.user.js "Firefox version")] [[Chromium](https://raw.githubusercontent.com/ccd0/4chan-x/1.11.2.2/builds/4chan-X-noupdate.crx "Chromium version")]
 - Fix bug from v1.11.2.0 that broke `Use Recaptcha v1` when the original post form was hidden.
 
diff --git a/builds/4chan-X-beta.crx b/builds/4chan-X-beta.crx
index a7a66f420..4f9772264 100644
Binary files a/builds/4chan-X-beta.crx and b/builds/4chan-X-beta.crx differ
diff --git a/builds/4chan-X-beta.meta.js b/builds/4chan-X-beta.meta.js
index b4bd8c167..8cb44267d 100644
--- a/builds/4chan-X-beta.meta.js
+++ b/builds/4chan-X-beta.meta.js
@@ -1,6 +1,6 @@
 // ==UserScript==
 // @name         4chan X beta
-// @version      1.11.2.2
+// @version      1.11.2.3
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
diff --git a/builds/4chan-X-beta.user.js b/builds/4chan-X-beta.user.js
index d9ff652c8..b79a50b8b 100644
--- a/builds/4chan-X-beta.user.js
+++ b/builds/4chan-X-beta.user.js
@@ -1,7 +1,7 @@
 // Generated by CoffeeScript
 // ==UserScript==
 // @name         4chan X beta
-// @version      1.11.2.2
+// @version      1.11.2.3
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
@@ -411,7 +411,7 @@
   doc = d.documentElement;
 
   g = {
-    VERSION: '1.11.2.2',
+    VERSION: '1.11.2.3',
     NAMESPACE: '4chan X.',
     boards: {}
   };
@@ -871,6 +871,18 @@
     return video.mozHasAudio || !!video.webkitAudioDecodedByteCount;
   };
 
+  $.engine = (function() {
+    if (/Chrome\//.test(navigator.userAgent)) {
+      return 'blink';
+    }
+    if (/WebKit\//.test(navigator.userAgent)) {
+      return 'webkit';
+    }
+    if (/Gecko\/|Goanna/.test(navigator.userAgent)) {
+      return 'gecko';
+    }
+  })();
+
   $.item = function(key, val) {
     var item;
     item = {};
@@ -10573,7 +10585,7 @@
       }
       if (file.scrollIntoView) {
         delete file.scrollIntoView;
-        imageBottom = Header.getBottomOf(file.fullImage) - 25;
+        imageBottom = Header.getBottomOf(file.fullImage);
         if (imageBottom < 0) {
           window.scrollBy(0, Math.min(-imageBottom, Header.getTopOf(file.fullImage)));
         }
@@ -10782,7 +10794,7 @@
           return results;
         })(), width = ref1[0], height = ref1[1];
         ref2 = this.getBoundingClientRect(), left = ref2.left, right = ref2.right;
-        padding = 16;
+        padding = 25;
         maxWidth = Math.max(left, doc.clientWidth - right);
         maxHeight = doc.clientHeight - padding;
         scale = Math.min(1, maxWidth / width, maxHeight / height);
@@ -17039,7 +17051,9 @@
       }
       $.addClass(doc, 'fourchan-x', 'seaweedchan');
       $.addClass(doc, g.VIEW === 'thread' ? 'thread-view' : g.VIEW);
-      $.addClass(doc, typeof chrome !== "undefined" && chrome !== null ? 'blink' : 'gecko');
+      if ($.engine) {
+        $.addClass(doc, $.engine);
+      }
       $.addStyle(Main.css, 'fourchanx-css');
       keyboard = false;
       $.on(d, 'mousedown', function() {
@@ -18105,7 +18119,7 @@
 "  height: 10px;\n" +
 "  position: absolute;\n" +
 "}\n" +
-":root:not(.autohide) #scroll-marker {\n" +
+"#header-bar:not(.autohide) #scroll-marker {\n" +
 "  pointer-events: none;\n" +
 "}\n" +
 "#header-bar #scroll-marker {\n" +
@@ -18485,6 +18499,10 @@
 "  left: -1em;\n" +
 "  width: 0;\n" +
 "}\n" +
+"/* \`\`::-webkit-*'' selectors break selector lists on Firefox. */\n" +
+"#index-search::-webkit-search-cancel-button {\n" +
+"  display: none;\n" +
+"}\n" +
 "#index-search:not([data-searching]) + #index-search-clear {\n" +
 "  display: none;\n" +
 "}\n" +
@@ -18828,6 +18846,9 @@
 ":root.fit-height .full-image {\n" +
 "  max-height: 100vh;\n" +
 "}\n" +
+":root.fit-height.fixed .full-image {\n" +
+"  max-height: calc(100vh - 25px);\n" +
+"}\n" +
 ":root.fit-width .full-image {\n" +
 "  max-width: 100%;\n" +
 "}\n" +
diff --git a/builds/4chan-X-noupdate.crx b/builds/4chan-X-noupdate.crx
index b0379d1b0..7c4a283c7 100644
Binary files a/builds/4chan-X-noupdate.crx and b/builds/4chan-X-noupdate.crx differ
diff --git a/builds/4chan-X-noupdate.user.js b/builds/4chan-X-noupdate.user.js
index 2e21be2f7..bbd3c6792 100644
--- a/builds/4chan-X-noupdate.user.js
+++ b/builds/4chan-X-noupdate.user.js
@@ -1,7 +1,7 @@
 // Generated by CoffeeScript
 // ==UserScript==
 // @name         4chan X
-// @version      1.11.2.2
+// @version      1.11.2.3
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
@@ -410,7 +410,7 @@
   doc = d.documentElement;
 
   g = {
-    VERSION: '1.11.2.2',
+    VERSION: '1.11.2.3',
     NAMESPACE: '4chan X.',
     boards: {}
   };
@@ -870,6 +870,18 @@
     return video.mozHasAudio || !!video.webkitAudioDecodedByteCount;
   };
 
+  $.engine = (function() {
+    if (/Chrome\//.test(navigator.userAgent)) {
+      return 'blink';
+    }
+    if (/WebKit\//.test(navigator.userAgent)) {
+      return 'webkit';
+    }
+    if (/Gecko\/|Goanna/.test(navigator.userAgent)) {
+      return 'gecko';
+    }
+  })();
+
   $.item = function(key, val) {
     var item;
     item = {};
@@ -10572,7 +10584,7 @@
       }
       if (file.scrollIntoView) {
         delete file.scrollIntoView;
-        imageBottom = Header.getBottomOf(file.fullImage) - 25;
+        imageBottom = Header.getBottomOf(file.fullImage);
         if (imageBottom < 0) {
           window.scrollBy(0, Math.min(-imageBottom, Header.getTopOf(file.fullImage)));
         }
@@ -10781,7 +10793,7 @@
           return results;
         })(), width = ref1[0], height = ref1[1];
         ref2 = this.getBoundingClientRect(), left = ref2.left, right = ref2.right;
-        padding = 16;
+        padding = 25;
         maxWidth = Math.max(left, doc.clientWidth - right);
         maxHeight = doc.clientHeight - padding;
         scale = Math.min(1, maxWidth / width, maxHeight / height);
@@ -17038,7 +17050,9 @@
       }
       $.addClass(doc, 'fourchan-x', 'seaweedchan');
       $.addClass(doc, g.VIEW === 'thread' ? 'thread-view' : g.VIEW);
-      $.addClass(doc, typeof chrome !== "undefined" && chrome !== null ? 'blink' : 'gecko');
+      if ($.engine) {
+        $.addClass(doc, $.engine);
+      }
       $.addStyle(Main.css, 'fourchanx-css');
       keyboard = false;
       $.on(d, 'mousedown', function() {
@@ -18104,7 +18118,7 @@
 "  height: 10px;\n" +
 "  position: absolute;\n" +
 "}\n" +
-":root:not(.autohide) #scroll-marker {\n" +
+"#header-bar:not(.autohide) #scroll-marker {\n" +
 "  pointer-events: none;\n" +
 "}\n" +
 "#header-bar #scroll-marker {\n" +
@@ -18484,6 +18498,10 @@
 "  left: -1em;\n" +
 "  width: 0;\n" +
 "}\n" +
+"/* \`\`::-webkit-*'' selectors break selector lists on Firefox. */\n" +
+"#index-search::-webkit-search-cancel-button {\n" +
+"  display: none;\n" +
+"}\n" +
 "#index-search:not([data-searching]) + #index-search-clear {\n" +
 "  display: none;\n" +
 "}\n" +
@@ -18827,6 +18845,9 @@
 ":root.fit-height .full-image {\n" +
 "  max-height: 100vh;\n" +
 "}\n" +
+":root.fit-height.fixed .full-image {\n" +
+"  max-height: calc(100vh - 25px);\n" +
+"}\n" +
 ":root.fit-width .full-image {\n" +
 "  max-width: 100%;\n" +
 "}\n" +
diff --git a/builds/4chan-X.crx b/builds/4chan-X.crx
index ea6e13d75..c670331fe 100644
Binary files a/builds/4chan-X.crx and b/builds/4chan-X.crx differ
diff --git a/builds/4chan-X.meta.js b/builds/4chan-X.meta.js
index 29cca0b7b..a9fc8967f 100644
--- a/builds/4chan-X.meta.js
+++ b/builds/4chan-X.meta.js
@@ -1,6 +1,6 @@
 // ==UserScript==
 // @name         4chan X
-// @version      1.11.2.2
+// @version      1.11.2.3
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
diff --git a/builds/4chan-X.user.js b/builds/4chan-X.user.js
index 7491b15af..09cd2f31d 100644
--- a/builds/4chan-X.user.js
+++ b/builds/4chan-X.user.js
@@ -1,7 +1,7 @@
 // Generated by CoffeeScript
 // ==UserScript==
 // @name         4chan X
-// @version      1.11.2.2
+// @version      1.11.2.3
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
@@ -411,7 +411,7 @@
   doc = d.documentElement;
 
   g = {
-    VERSION: '1.11.2.2',
+    VERSION: '1.11.2.3',
     NAMESPACE: '4chan X.',
     boards: {}
   };
@@ -871,6 +871,18 @@
     return video.mozHasAudio || !!video.webkitAudioDecodedByteCount;
   };
 
+  $.engine = (function() {
+    if (/Chrome\//.test(navigator.userAgent)) {
+      return 'blink';
+    }
+    if (/WebKit\//.test(navigator.userAgent)) {
+      return 'webkit';
+    }
+    if (/Gecko\/|Goanna/.test(navigator.userAgent)) {
+      return 'gecko';
+    }
+  })();
+
   $.item = function(key, val) {
     var item;
     item = {};
@@ -10573,7 +10585,7 @@
       }
       if (file.scrollIntoView) {
         delete file.scrollIntoView;
-        imageBottom = Header.getBottomOf(file.fullImage) - 25;
+        imageBottom = Header.getBottomOf(file.fullImage);
         if (imageBottom < 0) {
           window.scrollBy(0, Math.min(-imageBottom, Header.getTopOf(file.fullImage)));
         }
@@ -10782,7 +10794,7 @@
           return results;
         })(), width = ref1[0], height = ref1[1];
         ref2 = this.getBoundingClientRect(), left = ref2.left, right = ref2.right;
-        padding = 16;
+        padding = 25;
         maxWidth = Math.max(left, doc.clientWidth - right);
         maxHeight = doc.clientHeight - padding;
         scale = Math.min(1, maxWidth / width, maxHeight / height);
@@ -17039,7 +17051,9 @@
       }
       $.addClass(doc, 'fourchan-x', 'seaweedchan');
       $.addClass(doc, g.VIEW === 'thread' ? 'thread-view' : g.VIEW);
-      $.addClass(doc, typeof chrome !== "undefined" && chrome !== null ? 'blink' : 'gecko');
+      if ($.engine) {
+        $.addClass(doc, $.engine);
+      }
       $.addStyle(Main.css, 'fourchanx-css');
       keyboard = false;
       $.on(d, 'mousedown', function() {
@@ -18105,7 +18119,7 @@
 "  height: 10px;\n" +
 "  position: absolute;\n" +
 "}\n" +
-":root:not(.autohide) #scroll-marker {\n" +
+"#header-bar:not(.autohide) #scroll-marker {\n" +
 "  pointer-events: none;\n" +
 "}\n" +
 "#header-bar #scroll-marker {\n" +
@@ -18485,6 +18499,10 @@
 "  left: -1em;\n" +
 "  width: 0;\n" +
 "}\n" +
+"/* \`\`::-webkit-*'' selectors break selector lists on Firefox. */\n" +
+"#index-search::-webkit-search-cancel-button {\n" +
+"  display: none;\n" +
+"}\n" +
 "#index-search:not([data-searching]) + #index-search-clear {\n" +
 "  display: none;\n" +
 "}\n" +
@@ -18828,6 +18846,9 @@
 ":root.fit-height .full-image {\n" +
 "  max-height: 100vh;\n" +
 "}\n" +
+":root.fit-height.fixed .full-image {\n" +
+"  max-height: calc(100vh - 25px);\n" +
+"}\n" +
 ":root.fit-width .full-image {\n" +
 "  max-width: 100%;\n" +
 "}\n" +
diff --git a/builds/4chan-X.zip b/builds/4chan-X.zip
index 0e9c6a548..db6beab50 100644
Binary files a/builds/4chan-X.zip and b/builds/4chan-X.zip differ
diff --git a/builds/updates-beta.xml b/builds/updates-beta.xml
index b51430ef3..416db1911 100644
--- a/builds/updates-beta.xml
+++ b/builds/updates-beta.xml
@@ -1,7 +1,7 @@
 <?xml version='1.0' encoding='UTF-8'?>
 <gupdate xmlns='http://www.google.com/update2/response' protocol='2.0'>
   <app appid='lacclbnghgdicfifcamcmcnilckjamag'>
-    <updatecheck codebase='https://ccd0.github.io/4chan-x/builds/4chan-X-beta.crx' version='1.11.2.2' />
+    <updatecheck codebase='https://ccd0.github.io/4chan-x/builds/4chan-X-beta.crx' version='1.11.2.3' />
   </app>
 </gupdate>
 
diff --git a/builds/updates.xml b/builds/updates.xml
index a691e688b..6a6ded0d5 100644
--- a/builds/updates.xml
+++ b/builds/updates.xml
@@ -1,7 +1,7 @@
 <?xml version='1.0' encoding='UTF-8'?>
 <gupdate xmlns='http://www.google.com/update2/response' protocol='2.0'>
   <app appid='lacclbnghgdicfifcamcmcnilckjamag'>
-    <updatecheck codebase='https://ccd0.github.io/4chan-x/builds/4chan-X.crx' version='1.11.2.2' />
+    <updatecheck codebase='https://ccd0.github.io/4chan-x/builds/4chan-X.crx' version='1.11.2.3' />
   </app>
 </gupdate>
 
diff --git a/package.json b/package.json
index 39f97b23a..0de1623a2 100755
--- a/package.json
+++ b/package.json
@@ -3,8 +3,8 @@
   "description": "Cross-browser userscript for maximum lurking on 4chan.",
   "meta": {
     "name": "4chan X",
-    "version": "1.11.2.2",
-    "date": "2015-06-30T15:52:28.530Z",
+    "version": "1.11.2.3",
+    "date": "2015-07-01T06:15:34.618Z",
     "repo": "https://github.com/ccd0/4chan-x/",
     "page": "https://github.com/ccd0/4chan-x",
     "downloads": "https://ccd0.github.io/4chan-x/builds/",