页面整体 */ body { margin: auto; max-width: 580px; font-size: 14px; font-family: Helvetica, Arial, sans-serif; } /* 页脚 */ footer { color: #888; margin-top: 15px; text-align: width: 40px; } /* 电影列表 */ .movie-list { list-style-type: none; padding: 0; margin-bottom: 10px; box-shadow: 0 2px 5px 0 rgba(0, 0, 0, 0.16), 0 2px 10px 0 rg ba(0, 0, 0, 0.12); movie-list li:hover { background-color: #f8f9fa; } /* 龙猫图片 */ .totoro { display: block; margin: 0 auto; height: 100px; } 接着在页面的 标签内引入这个 CSS 文件： templates/index.html：引入 CSS 文件

background: #eee; padding: 1rem; } body { max-width: 960px; margin: 0 auto; background: white; } h1 { font-family: serif; color: #377ba8; margin: 1rem 0; } a { color: #377ba8; } hr { border: none; border-top: padding: 0 0.5rem; } nav h1 { flex: auto; margin: 0; } nav h1 a { text-decoration: none; padding: 0.25rem 0.5rem; } nav ul { display: flex; list-style: none; margin: 0; padding: 0; } nav ul li a, nav ul li lightgray; display: flex; align-items: flex-end; } .content > header h1 { flex: auto; margin: 1rem 0 0.25rem 0; } .flash { margin: 1em 0; padding: 1em; background: #cae6f6; border: 1px solid #377ba8; } .post

background: #eee; padding: 1rem; } body { max-width: 960px; margin: 0 auto; background: white; } h1 { font-family: serif; color: #377ba8; margin: 1rem 0; } a { color: #377ba8; } hr { border: none; border-top: padding: 0 0.5rem; } nav h1 { flex: auto; margin: 0; } nav h1 a { text-decoration: none; padding: 0.25rem 0.5rem; } nav ul { display: flex; list-style: none; margin: 0; padding: 0; } nav ul li a, nav ul display: flex; align-items: ˓→flex-end; } .content > header h1 { flex: auto; margin: 1rem 0 0.25rem 0; } .flash { margin: 1em 0; padding: 1em; background: #cae6f6; border: 1px solid #377ba8; ˓→} .post