<div class="navigation_main">
    <a href="/logout"><button>로그아웃</button></a>
    <a href="/main"><button>검색</button></a>
    <a href="/mypage"><button>마이페이지</button></a>
    <a href="/timetable"><button>나만의시간표</button></a>
    <a href="/ttlist"><button>시간표수정</button></a>
</div>