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jcponce · Jul 19, 2023 · c2e0c94 · c2e0c94
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diff --git a/.DS_Store b/.DS_Store
diff --git a/math1052/lecture-10.html b/math1052/lecture-10.html
@@ -180,16 +180,19 @@ <h4>1 Ordinary Differential Equations</h4>
 					<div id="sbt">
 						<p><strong>1.8.1 The undamped spring</strong></p>
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-					<div style="margin-top: 50px;">
+					<div style="font-size: 50%;">
+						<p>Use mouse to drag mass and release.</p>
+					</div>
+					<div style="margin-top: -10px;">
 						<iframe 
 							scrolling="no"
 							style="width:750px; height: 400px;border:0px"
 							data-src="sketches/chapter-01/simple-oscillator/"		>
 						</iframe>
 					</div>
 
-					<div style="font-size: 50%;">
-						<a href="https://editor.p5js.org/jcponce/sketches/tONphyhn-" target="_blank">Source code <i class="fa fa-solid fa-code"></i></a>
+					<div style="font-size: 50%;margin-top: -20px;">
+						<p><a href="https://editor.p5js.org/jcponce/sketches/tONphyhn-" target="_blank">Source code <i class="fa fa-solid fa-code"></i></a></p>
 					</div>