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CSS系列（40）-- Container Queries详解

news 2025/7/2 22:35:38

前端技术探索系列：CSS Container Queries详解 📦

致读者：探索组件响应式的艺术 👋

前端开发者们，

今天我们将深入探讨 CSS Container Queries，这个强大的组件级响应式特性。

基础概念 🚀

容器定义

/* 容器设置 */
.container {container-type: inline-size;/* 或 */container-type: size;/* 或 */container-type: normal;
}/* 容器命名 */
.named-container {container-name: sidebar;container-type: inline-size;
}/* 简写语法 */
.shorthand {container: sidebar / inline-size;
}

查询语法

/* 基础查询 */
@container (min-width: 400px) {.component {display: grid;grid-template-columns: repeat(2, 1fr);}
}/* 命名容器查询 */
@container sidebar (max-width: 300px) {.sidebar-component {flex-direction: column;}
}/* 样式查询 */
@container (aspect-ratio > 1) {.card {flex-direction: row;}
}

高级特性 🎯

组件自适应

/* 卡片组件 */
.card-container {container-type: inline-size;
}.card {display: grid;gap: 1rem;
}@container (min-width: 300px) {.card {grid-template-columns: auto 1fr;}.card-image {aspect-ratio: 1;}
}@container (min-width: 500px) {.card {grid-template-columns: auto 1fr auto;}.card-actions {justify-self: end;}
}

布局控制

/* 布局切换 */
.layout-container {container-type: size;
}.flex-grid {display: flex;flex-wrap: wrap;gap: 1rem;
}@container (min-width: 600px) {.flex-grid {display: grid;grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));}
}/* 嵌套容器 */
.nested-container {container-type: inline-size;
}@container (min-width: 400px) {.nested-content {container-type: inline-size;}@container (min-width: 300px) {.nested-item {display: grid;grid-template-columns: 1fr 1fr;}}
}

实际应用 💫

导航组件

/* 响应式导航 */
.nav-container {container-type: inline-size;
}.nav {display: flex;flex-direction: column;
}@container (min-width: 500px) {.nav {flex-direction: row;justify-content: space-between;}.nav-menu {display: flex;gap: 1rem;}
}@container (min-width: 800px) {.nav-menu {gap: 2rem;}.nav-item {position: relative;}.dropdown {position: absolute;}
}

表单布局

/* 自适应表单 */
.form-container {container-type: inline-size;
}.form-group {display: flex;flex-direction: column;
}@container (min-width: 400px) {.form-group {flex-direction: row;align-items: center;}.form-label {flex: 0 0 150px;}.form-input {flex: 1;}
}@container (min-width: 600px) {.form-actions {margin-left: 150px;}
}

性能优化 ⚡

查询优化

/* 性能考虑 */
.optimized-container {container-type: inline-size;contain: layout style;
}/* 条件加载 */
@supports (container-type: inline-size) {.container-query {/* 容器查询样式 */}
}/* 回退方案 */
.component {/* 基础样式 */
}@media (min-width: 768px) {.component {/* 媒体查询回退 */}
}@container (min-width: 400px) {.component {/* 容器查询增强 */}
}

布局优化

/* 布局包含 */
.contained-layout {container-type: inline-size;contain: layout;content-visibility: auto;
}/* 渲染优化 */
.render-optimized {container-type: inline-size;will-change: transform;transform: translateZ(0);
}