diff --git a/index.html b/index.html
index 1acc528..c0aeda1 100644
--- a/index.html
+++ b/index.html
@@ -1349,11 +1349,6 @@
 					<label for="print">Add to print</label>
 					<br>
 				</div>
-					<div class="checkbox">
-						<input type="checkbox" id="print" name="print">
-						<label for="print">Add to print</label>
-						<br>
-					</div>
 			</div>
 
 
@@ -1704,6 +1699,20 @@
 				</div>
 				<br>
 				
+				<div class="glossary">
+					<!-- data-aos="slide-left" data-aos-duration="800" data-aos-offset="260"-->
+					Code:
+					<br>A system of signals
+					<br>used in transmitting messages.
+					<br>
+					<br>
+					A systematic collection
+					<br>
+					of regulations
+					<br>
+					or rules of procedure.
+				</div>
+				<br>
 				
 				<div class="bulletpoints">
 					<!-- data-aos="fade-down" data-aos-duration="800" data-aos-offset="70"-->
@@ -1713,6 +1722,13 @@
 				</div>
 				<br>
 				
+				<div class="bulletpoints">
+					<!-- data-aos="fade-down" data-aos-duration="800" data-aos-offset="70"-->
+					<ul>
+						<li>The receiver and the transmitter have to understand the same code.</li>
+					</ul>
+				</div>
+				<br>
 					<div class="checkbox">
 						<input type="checkbox" id="print" name="print">
 						<label for="print">Add to print</label>