goddamn bracket missing from css file

app/static/css/style.css

@@ -365,6 +365,7 @@ box-sizing: border-box;
   align-items: top;
   justify-items: center;
 }
+}
 
 @media screen and (max-width: 600px) {
 .grid{
@@ -374,7 +375,7 @@ box-sizing: border-box;
   align-items: top;
   justify-items: center;
 }
-
+}
 
 .gridbox {
   display: inline-block;
@@ -382,6 +383,7 @@ box-sizing: border-box;
   align-items: center;
   justify-items: center;
 }
+
 .gridbox:hover{
   opacity: 0.5;
 }

app/templates/show_book_detail.html

@@ -1,9 +1,8 @@
 {% extends 'base.html' %}
 
 {% block main %}
-
-
 <div class="container">
+
   <h1 class="header">{{ book.title }}</h1>
 <div style="float:right; padding-right: 140px;">
  <img class="no_cover" id="{{ book.title }}" src="../uploads/cover/{{ book.cover }}" width="280px" onerror="if (this.src != '../uploads/cover/{{ book.cover }}') this.src = '../static/img/default_cover.gif';"></div>
@@ -63,6 +62,7 @@
 
 </tbody>
   </table>
+
   <a href="{{url_for('add_to_stack', id=book.id)}}">Add book to Stack ===></a> <br><br>
 
   <a href="../uploads/{{ book.file }}">download {{ book.fileformat }}</a>
@@ -87,18 +87,18 @@
   {% endfor %}
   <br>
 
-
+{% if book.file %}
-    {% if book.file %}
+<button id="myBtn" style= "width: 180px; font-size: 10pt;"><a> Download this {{ book.fileformat }}</a></button>
-    <button id="myBtn" style= "width: 180px; font-size: 10pt;"><a> Download this {{ book.fileformat }}</a></button>
+<div id="myModal" class="modal">
-    <div id="myModal" class="modal">
   <div class="modal-content">
     <span class="close">&times;</span>
     <h3>A message from the uploading librarian:</h3>
     <span style="font-style: italic;">"{{book.message or '...'}}" </span><br>
-        <h4><a href="../uploads/{{ book.file }}"> >>>> Link to file <<<<</h4></a></div>
+    <h4><a href="../uploads/{{ book.file }}"> >>>> Link to file <<<<</h4></a>
   </div>
-    {% else %}
+  </div>
-    {% endif %}
+{% else %} 
+{% endif %}
 
   <button style= "font-size: 10pt;"> <a href="{{ url_for('edit_book_by_id', id=book.id )}}">edit</a></button>
   <button style= "font-size: 10pt;"> <a href="{{ url_for('remove_book_by_id', id=book.id)}}">delete</a></button>