마우스오버 효과(마우스 커서 올릴 때 hover 효과) _base_book.html{% load static %}DOCTYPE html>html lang="ko">head> meta charset="UTF-8"> meta name="viewport" content="width=device-width, initial-scale=1.0"> link rel="stylesheet" href = "{% static 'css/style.css' %}">......head>body> {% include 'nav_bar.html' %} ... div>body>html> nav_bar.html{% load static %}header class="header"> ...
