sanbuphy
ebe2bf6109
- Add standardized header and info box components to all demo files - Improve visual consistency with theme colors and spacing - Add max-height and overflow-y for better content containment - Update package.json build script with --force flag - Add .gitignore entries for REFACTORING files - Fix table formatting in audio-intro.md
367 lines
7.8 KiB
Vue
367 lines
7.8 KiB
Vue
<!--
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CssBoxModel.vue
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盒模型速懂：三根滑杆 + 颜色区分，实时显示总宽高、渲染顺序提示和 CSS 片段。
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-->
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<template>
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<div class="box-demo">
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<div class="demo-header">
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<span class="icon">📦</span>
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<span class="title">CSS 盒模型</span>
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<span class="subtitle">理解元素尺寸的构成（通俗说：盒子的四层包装）</span>
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</div>
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<div class="controls">
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<div class="control-item">
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<div class="control-header">
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<label>Padding (内边距)</label>
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<span class="val">{{ padding }}px</span>
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</div>
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<input type="range" min="0" max="50" v-model.number="padding" />
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</div>
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<div class="control-item">
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<div class="control-header">
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<label>Border (边框)</label>
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<span class="val">{{ border }}px</span>
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</div>
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<input type="range" min="0" max="30" v-model.number="border" />
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</div>
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<div class="control-item">
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<div class="control-header">
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<label>Margin (外边距)</label>
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<span class="val">{{ margin }}px</span>
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</div>
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<input type="range" min="0" max="50" v-model.number="margin" />
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</div>
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</div>
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<div class="stage-container">
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<div class="stage-scroll">
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<div class="layer margin" :style="{ padding: margin + 'px' }">
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<span class="layer-label" v-if="margin >= 15">Margin</span>
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<div class="layer border" :style="{ borderWidth: border + 'px' }">
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<span class="layer-label" v-if="border >= 10">Border</span>
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<div class="layer padding" :style="{ padding: padding + 'px' }">
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<span class="layer-label" v-if="padding >= 15">Padding</span>
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<div class="content">
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<div class="content-inner">
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内容区<br />
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{{ contentW }} × {{ contentH }}
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</div>
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</div>
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</div>
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</div>
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</div>
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</div>
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</div>
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<div class="meta">
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<div class="meta-row main">
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<span class="meta-label">总占用宽度：</span>
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<span class="meta-value">{{ total }}px</span>
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</div>
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<div class="meta-detail">
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<div class="detail-item">
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<span class="detail-label">渲染顺序</span>
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<span class="detail-text">内容 → Padding → Border → Margin</span>
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</div>
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<div class="detail-item">
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<span class="detail-label">计算公式</span>
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<span class="detail-text"
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>Margin(×2) + Border(×2) + Padding(×2) + 内容宽</span
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>
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</div>
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</div>
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</div>
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<div class="info-box">
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<span class="icon">💡</span>
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<strong>核心思想：</strong>每个元素都是一个"盒子"，从内到外依次是：内容区 → 内边距 → 边框 → 外边距。
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</div>
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<div class="code-block">
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<div class="code-title">CSS 代码片段</div>
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<div class="code-content">
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<div class="line">.box {</div>
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<div class="line">width: {{ contentW }}px;</div>
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<div class="line">height: {{ contentH }}px;</div>
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<div class="line">padding: {{ padding }}px;</div>
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<div class="line">border: {{ border }}px solid #0ea5e9;</div>
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<div class="line">margin: {{ margin }}px;</div>
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<div class="line">}</div>
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</div>
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</div>
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</div>
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</template>
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<script setup>
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import { computed, ref } from 'vue'
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const contentW = 120
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const contentH = 80
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const padding = ref(20)
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const border = ref(10)
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const margin = ref(20)
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const total = computed(
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() => margin.value * 2 + border.value * 2 + padding.value * 2 + contentW
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)
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</script>
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<style scoped>
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.box-demo {
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border: 1px solid var(--vp-c-divider);
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border-radius: 8px;
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background: var(--vp-c-bg-soft);
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padding: 1rem;
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margin: 1rem 0;
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max-height: 600px;
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overflow-y: auto;
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display: flex;
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flex-direction: column;
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gap: 1rem;
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}
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.demo-header {
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display: flex;
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align-items: center;
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gap: 0.5rem;
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margin-bottom: 0.75rem;
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}
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.demo-header .icon {
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font-size: 1.25rem;
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}
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.demo-header .title {
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font-weight: bold;
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font-size: 1rem;
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}
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.demo-header .subtitle {
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color: var(--vp-c-text-2);
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font-size: 0.85rem;
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margin-left: 0.5rem;
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}
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.controls {
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display: grid;
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grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
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gap: 16px;
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}
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.control-item {
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background: var(--vp-c-bg);
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border: 1px solid var(--vp-c-divider);
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border-radius: 8px;
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padding: 12px 16px;
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display: flex;
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flex-direction: column;
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gap: 8px;
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}
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.control-header {
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display: flex;
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justify-content: space-between;
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align-items: center;
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font-size: 13px;
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}
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label {
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font-weight: 700;
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color: var(--vp-c-text-1);
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}
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.val {
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font-family: var(--vp-font-family-mono);
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color: var(--vp-c-brand);
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font-weight: 600;
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}
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input[type='range'] {
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width: 100%;
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accent-color: var(--vp-c-brand);
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cursor: pointer;
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}
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.stage-container {
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background: var(--vp-c-bg);
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border: 1px solid var(--vp-c-divider);
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border-radius: 12px;
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padding: 20px;
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display: flex;
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justify-content: center;
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align-items: center;
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overflow: hidden;
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}
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.stage-scroll {
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overflow: auto;
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max-width: 100%;
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padding: 10px; /* space for scrollbar if needed */
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}
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.layer {
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position: relative;
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border-radius: 4px;
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transition: all 0.2s ease-out;
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display: flex;
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align-items: center;
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justify-content: center;
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}
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.layer-label {
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position: absolute;
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top: 2px;
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left: 4px;
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font-size: 10px;
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font-weight: 700;
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text-transform: uppercase;
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opacity: 0.7;
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pointer-events: none;
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}
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/* Margin Layer */
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.margin {
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background-color: #f9fafb; /* gray-50 */
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border: 1px dashed #d1d5db; /* gray-300 */
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color: #6b7280;
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}
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.margin > .layer-label {
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color: #6b7280;
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}
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/* Border Layer */
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.border {
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background-color: #e0f2fe; /* sky-100 */
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border-style: solid;
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border-color: #7dd3fc; /* sky-300 */
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color: #0284c7;
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}
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.border > .layer-label {
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color: #0284c7;
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}
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/* Padding Layer */
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.padding {
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background-color: #dbeafe; /* blue-100 */
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border: 1px dashed #93c5fd; /* blue-300 */
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color: #2563eb;
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}
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.padding > .layer-label {
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color: #2563eb;
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}
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/* Content Box */
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.content {
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background: var(--vp-c-brand);
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color: #fff;
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border-radius: 4px;
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font-weight: 700;
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display: flex;
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align-items: center;
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justify-content: center;
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box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
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width: 120px;
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height: 80px;
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flex-shrink: 0;
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}
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.content-inner {
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text-align: center;
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font-size: 13px;
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line-height: 1.4;
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}
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.meta {
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display: flex;
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flex-direction: column;
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gap: 12px;
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padding: 16px;
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background: var(--vp-c-bg-alt);
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border-radius: 8px;
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border: 1px solid var(--vp-c-divider);
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}
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.meta-row.main {
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display: flex;
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align-items: center;
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gap: 8px;
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font-size: 16px;
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font-weight: 600;
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}
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.meta-value {
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color: var(--vp-c-brand);
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}
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.meta-detail {
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display: flex;
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flex-direction: column;
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gap: 6px;
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}
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.detail-item {
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display: flex;
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gap: 12px;
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font-size: 13px;
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align-items: flex-start;
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}
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.detail-label {
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color: var(--vp-c-text-2);
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min-width: 60px;
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flex-shrink: 0;
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}
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.detail-text {
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color: var(--vp-c-text-1);
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font-family: var(--vp-font-family-mono);
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}
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.code-block {
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background: var(--vp-c-bg-alt);
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border: 1px solid var(--vp-c-divider);
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border-radius: 10px;
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padding: 16px;
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}
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.code-title {
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font-weight: 700;
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margin-bottom: 8px;
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font-size: 13px;
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color: var(--vp-c-text-2);
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}
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.code-content {
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background: #0b1221;
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color: #e5e7eb;
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border-radius: 8px;
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padding: 16px;
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font-family: var(--vp-font-family-mono);
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font-size: 13px;
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overflow-x: auto;
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line-height: 1.6;
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}
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.line {
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white-space: pre;
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}
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.info-box {
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background: var(--vp-c-bg-alt);
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padding: 0.75rem;
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border-radius: 6px;
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font-size: 0.85rem;
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color: var(--vp-c-text-2);
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display: flex;
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gap: 0.25rem;
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}
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.info-box .icon {
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flex-shrink: 0;
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}
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.info-box strong {
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color: var(--vp-c-text-1);
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}
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</style>
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