diff --git a/overrides/assets/javascripts/screenshot_page.js b/overrides/assets/javascripts/screenshot_page.js
new file mode 100644
index 0000000..4ef3e73
--- /dev/null
+++ b/overrides/assets/javascripts/screenshot_page.js
@@ -0,0 +1,120 @@
+// Detect the current OS
+function detectOS() {
+  var linuxRegex = /Linux/i;
+  var winRegex = /Win/i;
+  var winNT7 = /NT 7/i;
+  var winNT6 = /NT 6/i;
+  var macRegex = /Mac/i;
+  var crosRegex = /CrOS/i;
+
+  var uaPromise = null;
+  if (navigator.userAgentData) {
+    uaPromise = navigator.userAgentData
+                    .getHighEntropyValues(['platform', 'platformVersion'])
+                    .then(ua => {
+                      return ua?.platform + ' ' + ua?.platformVersion;
+                    });
+  } else {
+    uaPromise = new Promise((res, rej) => {
+      res(navigator.userAgent ?? '');
+    });
+  }
+
+  return uaPromise.then(ua => {
+    if (linuxRegex.test(ua)) return 'linux';
+    if (winRegex.test(ua)) {
+      if (winNT7.test(ua) || winNT6.test(ua)) return 'win_7_or_less';
+      return 'win_latest';
+    }
+    if (macRegex.test(ua)) return 'mac';
+    if (crosRegex.test(ua)) return 'cros';
+    return null;
+  });
+}
+
+// Get the OS from the 'os' GET parameter if set
+function getOSGETParam() {
+  var sp = new URLSearchParams(location.search);
+  if (sp.has('os')) {
+    var os = sp.get('os');
+    switch (os) {
+      case 'win':
+        switch (sp.get('v')) {
+          case '7-':
+            return 'win_7_or_less';
+
+          case 'latest':
+          default:
+            return 'win_latest';
+        }
+        break;
+      case 'linux':
+        return 'linux';
+
+      case 'mac':
+        return 'mac';
+
+      case 'cros':
+        return 'cros';
+
+      default:
+        console.warn('Requested OS "' + os + '" unknown.');
+    }
+  }
+
+  return null;
+}
+
+// Get the target OS
+function getOS() {
+  // See whether a OS is being requested via a GET parameter
+  var os = getOSGETParam();
+  if (os !== null)
+    return new Promise((res, rej) => {
+      res(os);
+    });
+
+  // Otherwise, detect the browser
+  return detectOS();
+}
+
+// Transform the OS into the label id
+function getOSLabel() {
+  return getOS().then(os => {
+    switch (os) {
+      case 'win_latest':
+        return '1';
+
+      case 'win_7_or_less':
+        return '2';
+
+      case 'mac':
+        return '3';
+
+      case 'linux':
+        return '4';
+
+      case 'cros':
+        return '5';
+
+      default:
+        return null;
+    }
+  });
+}
+
+// Open the section corresponding to the target OS
+function openAppropriateSection() {
+  var tabs = document.querySelector('.md-content .tabbed-set');
+
+  getOSLabel().then(labelId => {
+    if (labelId === null) return;
+
+    var label = tabs.querySelector('label[for="__tabbed_1_' + labelId + '"]');
+    label.click();
+  });
+}
+
+window.addEventListener('load', _ => {
+  openAppropriateSection();
+});