<a type="" class="" data-toggle="modal" data-target="#exampleModal">
Size Guide
</a>
<!-- Modal -->
<div class="modal fade" id="exampleModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
 <div class="modal-dialog" role="document">
   <div class="modal-content">
     <div class="modal-header">
       <button type="button" class="close" data-dismiss="modal" aria-label="Close">
         <span aria-hidden="true">×</span>
       </button>
     </div>
     <div class="modal-body">
       <img src="https://cdn.shopify.com/s/files/1/0638/0231/0884/files/Men_s_T-Shirt_-min.png?v=1664895969">
     </div>

   </div>
 </div>
</div>