diff --git a/demo/app.js b/demo/app.js
index dfc1fddd..a472a972 100644
--- a/demo/app.js
+++ b/demo/app.js
@@ -13,191 +13,191 @@ import MarkersDisplay from '@Components/MarkersDisplay/MarkersDisplay';
 import './app.scss';
 
 const App = ({ manifestURL }) => {
-    const [userURL, setUserURL] = React.useState(manifestURL);
-    const [manifestUrl, setManifestUrl] = React.useState(manifestURL);
-
-    const tabValues = [
-        { title: 'Details', ref: React.useRef(null) },
-        { title: 'Transcripts', ref: React.useRef(null) },
-        { title: 'Files', ref: React.useRef(null) },
-        { title: 'Markers', ref: React.useRef(null) },
-    ];
-
-    React.useEffect(() => {
-        setManifestUrl(manifestUrl);
-    }, [manifestUrl]);
-
-    const handleSubmit = (e) => {
-        e.preventDefault();
-        setManifestUrl(userURL);
-    };
-
-    const handleUserInput = (e) => {
-        setManifestUrl();
-        setUserURL(e.target.value);
-    };
-
-    return (
-        <div className='ramp-demo'>
-            <div className='ramp--details'>
-                <h1>Ramp</h1>
-                <p>An interactive, IIIF powered A/V player built with components
-                    from <a href="https://www.npmjs.com/package/@samvera/ramp"
-                        target="_blank">
-                        @samvera/ramp
-                    </a> library. This player supports <em>IIIF Presentation 3.0 Manifests</em>. Please enter the URL
-                    of your <em>public</em> manifest to view it in the player.
-                </p>
-                <div className='ramp--form_container'>
-                    <form onSubmit={handleSubmit}>
-                        <div className='row'>
-                            <div className='col-1'>
-                                <label htmlFor="manifesturl" className="ramp-demo__manifest-input-label">Manifest URL</label>
-                            </div>
-                            <div className='col-2'>
-                                <input type='url'
-                                    id='manifesturl'
-                                    name='manifesturl'
-                                    value={userURL}
-                                    onChange={handleUserInput}
-                                    placeholder='Manifest URL'
-                                    className="ramp-demo__manifest-input" />
-                                <input type='submit' value='Set Manifest' className="ramp-demo__manifest-submit" />
-                            </div>
-                        </div>
-                    </form>
-                </div>
-            </div>
-            <div className='ramp--player_container'>
-                <IIIFPlayer
-                    manifestUrl={manifestUrl}
-                >
-                    <div className="iiif-player-demo">
-                        <MediaPlayer enableFileDownload={true} />
-                        <div className="components-row">
-                            <div className="nav">
-                                <AutoAdvanceToggle />
-                                <StructuredNavigation />
-                            </div>
-                            <Tabs tabValues={tabValues} manifestUrl={manifestUrl} />
-                        </div>
-                    </div>
-                </IIIFPlayer>
+  const [userURL, setUserURL] = React.useState(manifestURL);
+  const [manifestUrl, setManifestUrl] = React.useState(manifestURL);
+
+  const tabValues = [
+    { title: 'Details', ref: React.useRef(null) },
+    { title: 'Transcripts', ref: React.useRef(null) },
+    { title: 'Files', ref: React.useRef(null) },
+    { title: 'Markers', ref: React.useRef(null) },
+  ];
+
+  React.useEffect(() => {
+    setManifestUrl(manifestUrl);
+  }, [manifestUrl]);
+
+  const handleSubmit = (e) => {
+    e.preventDefault();
+    setManifestUrl(userURL);
+  };
+
+  const handleUserInput = (e) => {
+    setManifestUrl();
+    setUserURL(e.target.value);
+  };
+
+  return (
+    <div className='ramp-demo'>
+      <div className='ramp--details'>
+        <h1>Ramp</h1>
+        <p>An interactive, IIIF powered A/V player built with components
+          from <a href="https://www.npmjs.com/package/@samvera/ramp"
+            target="_blank">
+            @samvera/ramp
+          </a> library. This player supports <em>IIIF Presentation 3.0 Manifests</em>. Please enter the URL
+          of your <em>public</em> manifest to view it in the player.
+        </p>
+        <div className='ramp--form_container'>
+          <form onSubmit={handleSubmit}>
+            <div className='row'>
+              <div className='col-1'>
+                <label htmlFor="manifesturl" className="ramp-demo__manifest-input-label">Manifest URL</label>
+              </div>
+              <div className='col-2'>
+                <input type='url'
+                  id='manifesturl'
+                  name='manifesturl'
+                  value={userURL}
+                  onChange={handleUserInput}
+                  placeholder='Manifest URL'
+                  className="ramp-demo__manifest-input" />
+                <input type='submit' value='Set Manifest' className="ramp-demo__manifest-submit" />
+              </div>
             </div>
+          </form>
         </div>
-    );
+      </div>
+      <div className='ramp--player_container'>
+        <IIIFPlayer
+          manifestUrl={manifestUrl}
+        >
+          <div className="iiif-player-demo">
+            <MediaPlayer enableFileDownload={true} />
+            <div className="components-row">
+              <div className="nav">
+                <AutoAdvanceToggle />
+                <StructuredNavigation />
+              </div>
+              <Tabs tabValues={tabValues} manifestUrl={manifestUrl} />
+            </div>
+          </div>
+        </IIIFPlayer>
+      </div>
+    </div>
+  );
 };
 
 
 /*Reference: https://accessible-react.eevis.codes/components/tabs */
 const Tabs = ({ tabValues, manifestUrl }) => {
-    const [activeTab, setActiveTab] = React.useState(0);
-
-    let tabs = [];
-
-    const handleClick = (index) => {
-        setActiveTab(index);
-    };
-
-    const handleNextTab = (firstTabInRound, nextTab, lastTabInRound) => {
-        const tabToSelect =
-            activeTab === lastTabInRound ? firstTabInRound : nextTab;
-        setActiveTab(tabToSelect);
-        tabValues[tabToSelect].ref.current.focus();
-    };
-
-    const handleKeyPress = (event) => {
-        const tabCount = Object.keys(tabValues).length - 1;
-
-        if (event.key === "ArrowLeft") {
-            const last = tabCount;
-            const next = activeTab - 1;
-            handleNextTab(last, next, 0);
-        }
-        if (event.key === "ArrowRight") {
-            const first = 0;
-            const next = activeTab + 1;
-            handleNextTab(first, next, tabCount);
-        }
-    };
-
-    tabValues.map((t, index) => {
-        tabs.push(
-            <Tab
-                key={index}
-                id={t.title.toLowerCase()}
-                tabPanelId={`${t.title.toLowerCase()}Tab`}
-                index={index}
-                handleChange={handleClick}
-                activeTab={activeTab}
-                title={t.title}
-                tabRef={t.ref}
-            />
-        );
-    });
-
-    return (
-        <section className="tabs-wrapper">
-            <div className="switcher">
-                <ul
-                    role="tablist"
-                    className="tablist switcher"
-                    aria-label="more Ramp components in tabs"
-                    onKeyDown={handleKeyPress}>
-                    {tabs}
-                </ul>
-            </div>
-            <TabPanel id="detailsTab" tabId="details" tabIndex={0} activeTab={activeTab}>
-                <MetadataDisplay showHeading={false} />
-            </TabPanel>
-            <TabPanel id="transcriptsTab" tabId="transcripts" tabIndex={1} activeTab={activeTab}>
-                <Transcript
-                    playerID="iiif-media-player"
-                    manifestUrl={manifestUrl}
-                />
-            </TabPanel>
-            <TabPanel id="filesTab" tabId="files" tabIndex={2} activeTab={activeTab}>
-                <SupplementalFiles showHeading={false} />
-            </TabPanel>
-            <TabPanel id="markersTab" tabId="markers" tabIndex={3} activeTab={activeTab}>
-                <MarkersDisplay showHeading={false} />
-            </TabPanel>
-        </section>
+  const [activeTab, setActiveTab] = React.useState(0);
+
+  let tabs = [];
+
+  const handleClick = (index) => {
+    setActiveTab(index);
+  };
+
+  const handleNextTab = (firstTabInRound, nextTab, lastTabInRound) => {
+    const tabToSelect =
+      activeTab === lastTabInRound ? firstTabInRound : nextTab;
+    setActiveTab(tabToSelect);
+    tabValues[tabToSelect].ref.current.focus();
+  };
+
+  const handleKeyPress = (event) => {
+    const tabCount = Object.keys(tabValues).length - 1;
+
+    if (event.key === "ArrowLeft") {
+      const last = tabCount;
+      const next = activeTab - 1;
+      handleNextTab(last, next, 0);
+    }
+    if (event.key === "ArrowRight") {
+      const first = 0;
+      const next = activeTab + 1;
+      handleNextTab(first, next, tabCount);
+    }
+  };
+
+  tabValues.map((t, index) => {
+    tabs.push(
+      <Tab
+        key={index}
+        id={t.title.toLowerCase()}
+        tabPanelId={`${t.title.toLowerCase()}Tab`}
+        index={index}
+        handleChange={handleClick}
+        activeTab={activeTab}
+        title={t.title}
+        tabRef={t.ref}
+      />
     );
+  });
+
+  return (
+    <section className="tabs-wrapper">
+      <div className="switcher">
+        <ul
+          role="tablist"
+          className="tablist switcher"
+          aria-label="more Ramp components in tabs"
+          onKeyDown={handleKeyPress}>
+          {tabs}
+        </ul>
+      </div>
+      <TabPanel id="detailsTab" tabId="details" tabIndex={0} activeTab={activeTab}>
+        <MetadataDisplay showHeading={false} />
+      </TabPanel>
+      <TabPanel id="transcriptsTab" tabId="transcripts" tabIndex={1} activeTab={activeTab}>
+        <Transcript
+          playerID="iiif-media-player"
+          manifestUrl={manifestUrl}
+        />
+      </TabPanel>
+      <TabPanel id="filesTab" tabId="files" tabIndex={2} activeTab={activeTab}>
+        <SupplementalFiles showHeading={false} />
+      </TabPanel>
+      <TabPanel id="markersTab" tabId="markers" tabIndex={3} activeTab={activeTab}>
+        <MarkersDisplay showHeading={false} />
+      </TabPanel>
+    </section>
+  );
 };
 
 const Tab = ({ id, tabPanelId, index, handleChange, activeTab, title, tabRef }) => {
-    const handleClick = () => { handleChange(index); };
-    return (
-        <li role="presentation">
-            <button
-                role="tab"
-                id={id}
-                aria-selected={activeTab === index}
-                aria-controls={tabPanelId}
-                onClick={handleClick}
-                tabIndex={activeTab === index ? 0 : -1}
-                ref={tabRef}
-            >
-                {title}
-            </button>
-        </li>
-    );
+  const handleClick = () => { handleChange(index); };
+  return (
+    <li role="presentation">
+      <button
+        role="tab"
+        id={id}
+        aria-selected={activeTab === index}
+        aria-controls={tabPanelId}
+        onClick={handleClick}
+        tabIndex={activeTab === index ? 0 : -1}
+        ref={tabRef}
+      >
+        {title}
+      </button>
+    </li>
+  );
 };
 
 const TabPanel = ({ id, tabId, activeTab, tabIndex, children }) => {
-    return (
-        <section
-            role="tabpanel"
-            id={id}
-            aria-labelledby={tabId}
-            hidden={activeTab !== tabIndex}
-            tabIndex={0}
-            className="tabpanel"
-        >
-            {children}
-        </section>
-    );
+  return (
+    <section
+      role="tabpanel"
+      id={id}
+      aria-labelledby={tabId}
+      hidden={activeTab !== tabIndex}
+      tabIndex={0}
+      className="tabpanel"
+    >
+      {children}
+    </section>
+  );
 };
 
 export default App;