bit more html cleanup

www/index.html

@@ -63,7 +63,7 @@ <h2 class="text-center" style="margin-bottom:0px"> Democratizing Webcam Eye Trac
 			<div id="video" class="container p-4">
 				<div class="row">
 					<div class="col-sm-7">
-						<div class="embed-responsive embed-responsive-16by9" align="center">
+						<div class="embed-responsive embed-responsive-16by9">
 						  <iframe width="560" height="315" src="https://www.youtube-nocookie.com/embed/NRLlRh2apA8" frameborder="0" allowfullscreen></iframe>
 						</div>
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@@ -281,10 +281,10 @@ <h4 class="pad">WebGazer on Search Engines (legacy)</h4>
 		<hr class="featurette-divider">
 		<div id="publication" class="container pad">
 			<h2 class="text-center">Publications</h2>
-			<p><i><b>Note: </b>The current iteration of WebGazer no longer corresponds with the WebGazer described in the following publications and which can be found <a href="https://github.com/brownhci/WebGazer/tree/2a4a70cb49b2d568a09362e1b52fd3bd025cd38d">here</a>.</i></p>
+			<p><i><b>Note: </b>The current iteration of WebGazer no longer corresponds with the WebGazer described in the following publications. The legacy version as described in the paper can be found in the <a href="https://github.com/brownhci/WebGazer/tree/2a4a70cb49b2d568a09362e1b52fd3bd025cd38d">commit history</a> on GitHub.</i></p>
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 			<div class="col-lg-1">
-				<a href="https://jeffhuang.com/Final_WebGazer_IJCAI16.pdf"><img src="media/pdf.png"></a>
+				<a href="https://jeffhuang.com/Final_WebGazer_IJCAI16.pdf"><img class="my-3" src="media/pdf.svg" width="75" height="75" alt="pdf icon"></a>
 			</div>
 			<div class="col-lg-11">
 			<p>If you use WebGazer.js please cite:</p>
@@ -304,7 +304,7 @@ <h2 class="text-center">Publications</h2>
 			</div>
 			<div class="row">
 			<div class="col-lg-1">
-				<a href="https://jeffhuang.com/Final_SearchGazer_CHIIR17.pdf"><img src="media/pdf.png"></a>
+				<a href="https://jeffhuang.com/Final_SearchGazer_CHIIR17.pdf"><img class="my-3" src="media/pdf.svg" width="75" height="75" alt="pdf icon"></a>
 			</div>
 			<div class="col-lg-11">
 			<p>If you use <a href="./search">SearchGazer.js</a> please cite the following paper:</p>
@@ -323,7 +323,7 @@ <h2 class="text-center">Publications</h2>
 			</div>
 			<div class="row">
 			<div class="col-lg-1">
-				<a href="https://jeffhuang.com/Final_EyeTyper_ETRA18.pdf"><img src="media/pdf.png"></a>
+				<a href="https://jeffhuang.com/Final_EyeTyper_ETRA18.pdf"><img class="my-3" src="media/pdf.svg" width="75" height="75" alt="pdf icon"></a>
 			</div>
 			<div class="col-lg-11">
 			<p>For the <a href="./data">WebGazer webcam dataset</a> and findings about gaze behavior during typing:</p>
@@ -368,7 +368,9 @@ <h2 class="text-center">Press</h2>
 					<li><a href="https://www.reddit.com/r/programming/comments/4kyeww/webgazerjs_eye_tracking_library_using_the_webcam/">Reddit /r/programming</a></li>
 					<li><a href="https://twitter.com/search?f=tweets&vertical=default&q=webgazer">Twitter</a></li>
 					<li><a href="https://www.youtube.com/results?search_query=webgazer">YouTube</a></li>
+				</ul>
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+			</div>
 		</div>
 
 		<hr class="featurette-divider">
@@ -431,6 +433,7 @@ <h2 class="text-center">License</h2>
 			<p class="text-center">Copyright (C) 2016-2023 <a href="https://hci.brown.edu">Brown HCI Group</a><br>
 			Licensed under <a href="http://www.gnu.org/licenses/gpl-3.0.en.html">GPLv3</a>.
 			</p>
+		</div>
 
 		<script src="./node_modules/jquery/dist/jquery.min.js"></script>
 		<script src="./node_modules/bootstrap/dist/js/bootstrap.min.js"></script>