:art: shrunk heading styles a little

vue-theme/src/sss/_typography.sss

         cursor: pointer
         color: $cia_black
 
-h1
+h1, h2, h3, h4, h5, h6
     display: block
+    margin-left: 0
+    margin-right: 0
+h1
     font-size: 2em
     margin-top: 0.6em
     margin-bottom: 0.6em
-    margin-left: 0
-    margin-right: 0
-    font-weight: bold
-
 h2
-    display: block
     font-size: 1.5em
     margin-top: 0.8em
     margin-bottom: 0.8em
-    margin-left: 0
-    margin-right: 0
-    font-weight: bold
 h3
-    display: block
     font-size: 1.17em
     margin-top: 1em
     margin-bottom: 1em
-    margin-left: 0
-    margin-right: 0
-    font-weight: bold
 h4
-    display: block
     font-size: 1em
     margin-top: 1.33em
     margin-bottom: 1.33em
-    margin-left: 0
-    margin-right: 0
-    font-weight: bold
-
 h5
-    display: block
     font-size: .8em
     margin-top: 1.6em
     margin-bottom: 1.6em
-    margin-left: 0
-    margin-right: 0
-    font-weight: bold
-
 h6
-    display: block
     font-size: .67em
     margin-top: 2em
     margin-bottom: 2em
-    margin-left: 0
-    margin-right: 0
-    font-weight: bold
+