diff --git a/apps/Info.html b/apps/Info.html
index 1605832ab..dc92c6950 100644
--- a/apps/Info.html
+++ b/apps/Info.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html>
+<html lang="en">
 
 <head>
 	<meta name="keywords" content="camicroscope, quip" />
@@ -52,36 +52,38 @@
 
 <body>
 	<div class="page-container">
-	<div>
-		<nav class="navbar navbar-expand-lg navbar-dark fixed-top bg-dark" style="position: sticky; margin-top: -4em;">
-			<div class="container-fluid">
-				<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
-					<span class="navbar-toggler-icon"></span>
-					</button>
-					<div class="collapse navbar-collapse" id="navbarSupportedContent" >
-						<ul class="navbar-nav mr-auto gap-1">
-							<li class="nav-item link" style="font-family: sans-serif;">
-							   <a class="nav-link" href="landing/landing.html"> <i class="fas fa-home"></i> Home</a>
-							</li>
-							<li class="nav-item link" style="font-family: sans-serif;">
-								<a class="nav-link" href="table.html"> <i class="fas fa-list-ul"></i>  Slides</a>
-							</li>
-							<li class="nav-item active link">
-								<a class="nav-link" href="Info.html"> <i class="fas fa-info-circle"></i> Info</a>
-							</li>
-							<li class="nav-item link">
-								<a class="nav-link" href="./dev-workbench/workbench.html"> <i class="fas fa-pencil-ruler"></i> Workbench</a>
-							</li>
-							<li class="nav-item link" style="font-family: sans-serif;">
-								<a class="nav-link" href="./signup/signup.html"> <i class="fas fa-user-plus"></i> Signup</a>
-							</li>
-							<li class="nav-item link" style="font-family: sans-serif;">
-								<a class="nav-link" target="_blank" href="https://docs.google.com/forms/d/e/1FAIpQLScL91LxrpAZjU88GBZP9gmcdgdf8__uNUwhws2lzU6Lr4qNwA/viewform"> <i class="fas fa-comment"></i> Feedback</a>
-							</li>
-						</ul>
-					</div>
-			</div>
-		</nav>
+	<header>
+		<div>
+			<nav class="navbar navbar-expand-lg navbar-dark fixed-top bg-dark" style="position: sticky; margin-top: -4em;">
+				<div class="container-fluid">
+					<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
+						<span class="navbar-toggler-icon"></span>
+						</button>
+						<div class="collapse navbar-collapse" id="navbarSupportedContent" >
+							<ul class="navbar-nav mr-auto gap-1">
+								<li class="nav-item link" style="font-family: sans-serif;">
+								   <a class="nav-link" href="landing/landing.html"> <i class="fas fa-home"></i> Home</a>
+								</li>
+								<li class="nav-item link" style="font-family: sans-serif;">
+									<a class="nav-link" href="table.html"> <i class="fas fa-list-ul"></i>  Slides</a>
+								</li>
+								<li class="nav-item active link">
+									<a class="nav-link" href="Info.html"> <i class="fas fa-info-circle"></i> Info</a>
+								</li>
+								<li class="nav-item link">
+									<a class="nav-link" href="./dev-workbench/workbench.html"> <i class="fas fa-pencil-ruler"></i> Workbench</a>
+								</li>
+								<li class="nav-item link" style="font-family: sans-serif;">
+									<a class="nav-link" href="./signup/signup.html"> <i class="fas fa-user-plus"></i> Signup</a>
+								</li>
+								<li class="nav-item link" style="font-family: sans-serif;">
+									<a class="nav-link" target="_blank" href="https://docs.google.com/forms/d/e/1FAIpQLScL91LxrpAZjU88GBZP9gmcdgdf8__uNUwhws2lzU6Lr4qNwA/viewform"> <i class="fas fa-comment"></i> Feedback</a>
+								</li>
+							</ul>
+						</div>
+				</div>
+			</nav>
+	</header>
 
 	<div class="header text-center text-white bg-info p-4">
 		<h1 class="h1">caMicroscope</h1>
diff --git a/apps/admin/admin.html b/apps/admin/admin.html
index cd93f55c8..de20f54f8 100644
--- a/apps/admin/admin.html
+++ b/apps/admin/admin.html
@@ -65,7 +65,7 @@
       <!-- <input class="form-control form-control-primary w-100" type="text" placeholder="Search" aria-label="Search"> -->
       <ul class="navbar-nav px-3 sign">
         <li class="nav-item text-nowrap">
-          <a class="nav-link sign-text" href="#">Sign out</a>
+          <a class="nav-link sign-text" href="#" style="font-weight: bold; font-size: 14pt;">Sign out</a>
         </li>
       </ul>
     </header>
diff --git a/apps/dev-workbench/workbench.html b/apps/dev-workbench/workbench.html
index 99bc341c9..496823d5c 100644
--- a/apps/dev-workbench/workbench.html
+++ b/apps/dev-workbench/workbench.html
@@ -249,6 +249,7 @@ <h4 class="card-title">Select your dataset</h4>
               Select the dataset (.zip) having three files; spritesheet
               (data.jpg), a binary labels (labels.bin) and the classes
               (labelnames.csv) from your local storage.
+              
             </p>
             <div class="input-group">
               <div class="custom-file">
@@ -262,7 +263,7 @@ <h4 class="card-title">Select your dataset</h4>
                   style="overflow: hidden;"
                   class="custom-file-label spriteInputLabel"
                   for="spriteInput"
-                  >Choose file
+                  >
                 </label>
               </div>
             </div>
@@ -352,7 +353,7 @@ <h5 class="modal-title" id="labelSelectModalTitle"></h5>
                       for="labelsInput"
                       style="overflow: hidden;"
                     >
-                      Choose
+                     
                     </label>
                   </div>
                 </div>
diff --git a/apps/heatmap/heatmap.html b/apps/heatmap/heatmap.html
index 1047da64b..c31d05573 100644
--- a/apps/heatmap/heatmap.html
+++ b/apps/heatmap/heatmap.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html>
+<html lang="en">
 
 <head>
 	<meta name="keywords" content="camicroscope, quip" />
diff --git a/apps/labeling/labeling.html b/apps/labeling/labeling.html
index 1e8298122..8f94a1afe 100644
--- a/apps/labeling/labeling.html
+++ b/apps/labeling/labeling.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html>
+<html lang="en">
 
 <head>
 	<meta name="keywords" content="camicroscope, quip" />
diff --git a/apps/landing/landing.html b/apps/landing/landing.html
index e442429ca..f471b7782 100644
--- a/apps/landing/landing.html
+++ b/apps/landing/landing.html
@@ -103,8 +103,8 @@ <h3>Documentation</h3>
                 </div>
             </section>
         </div>
-<iframe width="560" height="315" src="https://www.youtube-nocookie.com/embed/prPtb89jFig" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
-</section>
+        <iframe width="560" height="315" src="https://www.youtube-nocookie.com/embed/prPtb89jFig" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+        </section>
 
 
 
diff --git a/apps/model/model.html b/apps/model/model.html
index c8c541785..53b85af27 100644
--- a/apps/model/model.html
+++ b/apps/model/model.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html>
+<html lang="en">
 
 <head>
   <meta name="keywords" content="camicroscope, quip"/>
diff --git a/apps/multi/multi.html b/apps/multi/multi.html
index 70c27e734..7b99d63e7 100644
--- a/apps/multi/multi.html
+++ b/apps/multi/multi.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html>
+<html lang="en">
 <head>
   <script type="text/javascript" src="../../core/openseadragon/openseadragon.js"></script>
   <script src="../../core/Store.js"></script>
diff --git a/apps/port/export.html b/apps/port/export.html
index d79ecc75d..5e7785db9 100644
--- a/apps/port/export.html
+++ b/apps/port/export.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html>
+<html lang="en">
 <head>
   <script src="../../core/Store.js"></script>
   <title>Export Results [caMicroscope]</title>
diff --git a/apps/port/import.html b/apps/port/import.html
index 91ca4cc93..868d38733 100644
--- a/apps/port/import.html
+++ b/apps/port/import.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html>
+<html lang="en">
 
 <head>
   <script src="../../core/Store.js"></script>
diff --git a/apps/viewer/viewer.html b/apps/viewer/viewer.html
index 522ab8cd5..3424ad9be 100644
--- a/apps/viewer/viewer.html
+++ b/apps/viewer/viewer.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html>
+<html lang="en">
   <head>
     <meta name="keywords" content="camicroscope, quip" />
     <meta charset="utf-8" />
