config.css에서 div, button에 적용되던 전역 style 제거

모바일 화면에서 입구 햄버거 버튼 동작

i_entrance/user_info.html

@@ -15,6 +15,7 @@
         <script src='../d_shared/common_path.js'></script>
         <script type="text/javascript" src='../js/common.js'></script>
         <script type="text/javascript" src='../e_lib/jquery-3.2.1.min.js'></script>
+        <script type="text/javascript" src='../e_lib/bootstrap.bundle.min.js'></script>
         <script type="text/javascript" src='../e_lib/sha512.min.js'></script>
         <script type="text/javascript" src='../js/func.js'></script>
         <script type="text/javascript" src='../js/user_info.js'></script>
@@ -36,7 +37,7 @@
 <table class="bg0" id="user_info_table">
     <caption class="bg2 section_title with_border">
         계 정 관 리
-        <a href="entrance.php"><button id="btn_back1" >돌아가기</button></a>
+        <a href="entrance.php"><button id="btn_back1" class="with_skin">돌아가기</button></a>
     </caption>
     <colgroup>
         <col style="width:80px;" />