Markdown styleを少し改善

browser/styles/mixins/marked.styl

@@ -1,36 +1,38 @@
 marked()
-  h1, h2, h3, h4, h5, h6, p
-    &:first-child
-      margin-top 0
   hr
     border-top none
     border-bottom solid 1px borderColor
-    margin 15px 0
+    margin 20px 0
+  h1, h2, h3, h4, h5, h6
+    margin 0 0 20px
+    font-weight 600
+  * + h1, * + h2, * + h3, * + h4, * + h5, * + h6
+    margin-top 25px
   h1
     font-size 2em
     border-bottom solid 2px borderColor
-    margin 0.33em auto 0.67em
+    line-height 2.333em
   h2
-    font-size 1.5em
-    margin 0.42em auto 0.83em
+    font-size 1.66em
+    line-height 2.07em
   h3
-    font-size 1.17em
-    margin 0.5em auto 1em
+    font-size 1.33em
+    line-height 1.6625em
   h4
-    font-size 1em
-    margin 0.67em auto 1.33em
+    font-size 1.15em
+    line-height 1.4375em
   h5
-    font-size 0.83em
-    margin 0.84em auto 1.67em
+    font-size 1em
+    line-height 1.25em
   h6
-    font-size 0.67em
-    margin 1.16em auto 2.33em
-  h1, h2, h3, h4, h5, h6
-    font-weight 700
-    line-height 1.8em
+    font-size 0.8em
+    line-height 1em
+
+  * + p, * + blockquote, * + ul, * + ol, * + pre
+    margin-top 15px
   p
-    line-height 1.8em
-    margin 15px 0 25px
+    line-height 1.9em
+    margin 0 0 20px
   img
     max-width 100%
   strong
@@ -41,15 +43,17 @@ marked()
     text-decoration line-through
   blockquote
     border-left solid 4px brandBorderColor
-    margin 15px 0 25px
+    margin 0 0 20px
     padding 0 25px
   ul
     list-style-type disc
     padding-left 35px
-    margin-bottom 35px
+    margin-bottom 20px
     li
       display list-item
       line-height 1.8em
+    &>li>ul, &>li>ol
+      margin 0
     &>li>ul
       list-style-type circle
       &>li>ul
@@ -57,10 +61,12 @@ marked()
   ol
     list-style-type decimal
     padding-left 35px
-    margin-bottom 35px
+    margin-bottom 20px
     li
       display list-item
       line-height 1.8em
+    &>li>ul, &>li>ol
+      margin 0
   code
     font-family Monaco, Menlo, 'Ubuntu Mono', Consolas, source-code-pro, monospace;
     padding 2px 4px
@@ -70,15 +76,19 @@ marked()
     color black
     text-decoration none
     background-color #F6F6F6
+    margin-right 2px
+  * + code
+    margin-left 2px
   pre
     padding 5px
     border solid 1px borderColor
     border-radius 5px
     overflow-x auto
-    margin 15px 0 25px
+    margin 0 0 15px
     background-color #F6F6F6
     line-height 1.35em
     &>code
+      margin 0
       padding 0
       border none
       border-radius 0