fixed width of timeline

src/css/Timeline.styl

@@ -2,6 +2,9 @@
   display flex
   flex-direction column
   margin 10px
+  border-radius 10px
+  width 45%
+  height 100%
   &__header
     border-radius 10px 10px 0 0
     padding 15px

src/plugin/ContentType/PageHtml/PageHtml.styl

@@ -22,10 +22,6 @@
         opacity 0.7
       &__text
         font-size 14px
-    &__wrapper
-      border-radius 10px
-      width 45%
-      height 100%
     &__header
       border-top-left-radius 10px
       border-top-right-radius 10px