레이아웃의 HTML/CSS 설정에 들어가면.

HTML - layout.html

<!--
__/\\\\\\\\\\\\\\\___/\\\__________________/\\\\\\\\\______/\\\\\\\\\\\\\\\____/\\\\\\\\\\\\\\\_         
 _\/\\\///////////___\/\\\________________/\\\\\\\\\\\\\___\///////\\\/////____\/\\\///////////__        
  _\/\\\______________\/\\\_______________/\\\/////////\\\________\/\\\_________\/\\\_____________       
   _\/\\\\\\\\\\\______\/\\\______________\/\\\_______\/\\\________\/\\\_________\/\\\\\\\\\\\\_____     
    _\/\\\///////_______\/\\\______________\/\\\\\\\\\\\\\\\________\/\\\_________\////////////\\\___    
     _\/\\\______________\/\\\______________\/\\\/////////\\\________\/\\\____________________\//\\\__   
      _\/\\\______________\/\\\______________\/\\\_______\/\\\________\/\\\_________/\\\________\/\\\__  
       _\/\\\______________\/\\\\\\\\\\\\\\\__\/\\\_______\/\\\________\/\\\________\//\\\\\\\\\\\\\/___ 
        _\///_______________\///////////////___\///________\///_________\///__________\/////////////_____
-->
<include target="_layout.html" />

요렇게... 있고 아래에 CSS 설정이 있는데요.

레이아웃에 코드를 추가하고 싶으면 어느 부분에 추가하면 되는건지 알고 싶습니다..

<include target="_layout.html" />

아래 부분에 추가하면 될까요?