noselect

www/css/autodoc.css

 .autodoc_valign {
 	padding-top: 50%;
 }
+
+.autodoc_noselect {
+	-webkit-touch-callout: none;
+	-webkit-user-select: none;
+	-khtml-user-select: none;
+	-moz-user-select: none;
+	-ms-user-select: none;
+	user-select: none;
+}

www/index.html

             </div>
             <div class="modal-body autodoc_home_modal_body">
               <div class="row">
-                <div id="autodoc_home_modal_left" class="col-1 autodoc_valign text-light bg-secondary"
+                <div id="autodoc_home_modal_left" class="col-1 autodoc_valign text-light bg-secondary autodoc_noselect"
                   style="opacity: 0.15;">
                   <i class="fas fa-3x fa-chevron-circle-left"></i>
                 </div>
                     <span class="autodoc_home_modal_pages"></span>
                   </div>
                 </div>
-                <div id="autodoc_home_modal_right" class="col-1 autodoc_valign text-light bg-secondary"
+                <div id="autodoc_home_modal_right" class="col-1 autodoc_valign text-light bg-secondary autodoc_noselect"
                   style="opacity: 0.15;">
                   <i class="fas fa-3x fa-chevron-circle-right"></i>
                 </div>