issue #56 好多改进

admin/write-post.php

@@ -58,7 +58,7 @@ Typecho_Widget::widget('Widget_Contents_Post_Edit')->to($post);
                     </p>
                 </div>
                 <div class="col-mb-12 col-tb-3" role="complementary">
-                    <section class="typecho-post-option">
+                    <section class="typecho-post-option" role="application">
                         <label for="date" class="typecho-label"><?php _e('发布日期'); ?></label>
                         <p><input class="typecho-date w-100" type="text" name="date" id="date" value="<?php $post->have() ? $post->date('Y-m-d H:i') : ''; ?>" /></p>
                     </section>