Update description.html

wiki/pages/description.html

@@ -4,6 +4,10 @@
   .dsc-bg {
     background-image: url("https://static.igem.wiki/teams/4583/wiki/modeling/ep-pic-banner01.png");
   }
+  .dis img {
+    display: block;
+    margin: 0 auto;
+  }
 </style>
 <div class="inp-bg dsc-bg">
   <div class="inp-title">
@@ -63,7 +67,7 @@
         <div id="progress-bar"></div>
       </div>
     </div>
-    <div class="col-sm-9 wiki-content">
+    <div class="col-sm-9 wiki-content dis">
       <div>
         <div>
           <ul class="gd-t1">