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               <h3 class="text-secondary">Online book</h3>
               <p>To make our book accessible to a wider audience the book has both a printed and an online version published. The online version is available through issuu, a digital publishing tool. It is free and available to everyone.</p>
               <p style="text-align: center;"><img src="https://static.igem.wiki/teams/4506/wiki/libros-ilustrados-portada.png" alt="bookcover" style='height: 100%; width: 100%; object-fit: cover'></p> </a>         
-            <a href="https://issuu.com/igemtecmty/docs/viaje_por_la_ciencia_1_"><button type="button" class="btn btn-primary"><a class="btn btn-primary" href="https://issuu.com/igemtecmty/docs/viaje_por_la_ciencia_1_"></a>See our book online</button></a>          
-          </div>
+              <p> <a href="https://issuu.com/igemtecmty/docs/viaje_por_la_ciencia_1_">See our book online</a></p>
+            </div>
           <div class="col-6 border-start border-dark border-2">
             <h3 class="text-secondary">Printed book</h3>
             <p>On the other hand, the printed version was created as a “libro cartonero” which is a Latin American publishing tradition, where recycled cardboard is used for bookbinding. This tradition was born out of small independent editorials as an artistic manifestation and act of resistance [2] and it was chosen as our publishing method because of its cultural history in Mexico, the economic accessibility and sustainability of its process and as a way to pass on this literary tradition. </p>
@@ -238,7 +238,7 @@
           <p>Another of the activities we did was to collect boxes of medicine no longer in use, to invite students to be part of avoiding clinical resistance through the recovery of said substances. Students were then invited to create a collaborative sculpture using the medicine boxes to create awareness about antibiotic resistance.</p>
           <p style="text-align: center;"><img src="https://static.igem.wiki/teams/4506/wiki/disposal-antibiotics.jpeg" alt="humanactivations" style='height: 70%; width: 70%; object-fit: cover'></p>          
           <p style = "font-size:14px ; text-align: center;"> Figure 4. Proper disposal of expired antibiotics collected</p> 
-          <p>In order to attract participants to the stand, we designed a game of loteria with a science and synthetic biology theme. Loteria is a traditional Mexican game in that includes boards and playing cards with popular images. Our game of loteria was successful in catching the attention of students and introducting them to synthetic biology and antibiotic resistance themes. </p>
+          <p>In order to attract participants to the stand, we designed a game of loteria with a science and synthetic biology theme. Loteria is a traditional Mexican game that includes boards and playing cards with popular images. Our game of loteria was successful in catching the attention of students and introducting them to synthetic biology and antibiotic resistance themes. </p>
           <p style="text-align: center;"><img src="https://static.igem.wiki/teams/4506/wiki/loteria1.png" alt="loteriadesign" style='height: 70%; width: 70%; object-fit: cover'></p>          
           <p style = "font-size:14px ; text-align: center;"> Figure 5. Design of the synthetic biology loteria game</p> 
           <p style="text-align: center;"><img src="https://static.igem.wiki/teams/4506/wiki/loteria2.jpeg" alt="loteriaactivity" style='height: 70%; width: 70%; object-fit: cover'></p>