Fix selectors

Author: tohosaku

src/themes/html.css

@@ -1,30 +1,30 @@
-je-form-input-label {
+.je-form-input-label {
   display: block;
   margin-bottom: 3px;
   font-weight: bold;
 }
-je-form-input-description {
+.je-form-input-description {
   display: inline-block;
   margin: 0;
   font-size: 0.8em;
   font-style: italic;
 }
-je-indented-panel {
+.je-indented-panel {
   padding: 5px;
   margin: 10px;
   border-radius: 3px;
   border: 1px solid #ddd;
 }
-je-child-editor-holder {
+.je-child-editor-holder {
   margin-bottom: 8px;
 }
-je-header-button-holder {
+.je-header-button-holder {
   display: inline-block;
   margin-left: 10px;
   font-size: 0.8em;
   vertical-align: middle;
 }
-je-table {
+.je-table {
   margin-bottom: 5px;
   border-bottom: 1px solid #ccc;
 }