added h4.inter-titre style to wysiwyg

sites/all/themes/custom/edlptheme/assets/styles/app.scss

@@ -296,6 +296,7 @@ main[role="main"]{
     @include content_titles;
     margin:0.9em 0 0;
   }
+
   article.node:not(.node--type-enregistrement)>h2, h2.title{
     @include content_titles;
   }
@@ -426,6 +427,13 @@ main[role="main"]{
     }
   }
 
+  h4.inter-titre{
+    @include content_courant;
+    font-weight: normal;
+    font-style: italic;
+    margin:1em 0 0 0;
+  }
+  
   article.node p, div.taxonomy-term p{
     @include content_courant;
     margin:0 0 1em 0;
@@ -490,8 +498,6 @@ main[role="main"]{
     }
   }
 
-
-
   img{
     max-width: 100%;
     height: auto;