样式冲突问题模板

This commit is contained in:
2026-06-21 16:31:22 +08:00
parent b14e3d1186
commit e9c570f893
5 changed files with 1273 additions and 4 deletions

View File

@@ -8,6 +8,8 @@
<router-link to="/home">首页</router-link>
<router-link to="/child-app">Vue2 子应用</router-link>
<router-link to="/vue3-app">Vue3 子应用</router-link>
<router-link to="/mock-app">💥主vs子</router-link>
<router-link to="/mock-app-2">🔵子vs子</router-link>
</nav>
</header>
<main class="app-main">
@@ -21,7 +23,13 @@
</script>
<style>
/* 全局样式重置 */
/* ============================================
全局样式重置(主应用)
注意:以下使用了 h2 / button / p / table / code
等通用选择器。在微前端场景中,这些选择器会:
1. 影响主应用自身的元素 ✅ (预期行为)
2. 泄漏到 iframe: false 的子应用中 ⚠️ (样式冲突)
============================================ */
* {
margin: 0;
padding: 0;
@@ -40,6 +48,90 @@ html, body {
height: 100%;
}
/* ---------- 冲突演示:主应用全局样式 ---------- */
/* 这些通用选择器如果被子应用的同名选择器覆盖,就会发生冲突 */
/* 冲突点 ①h2 — 主应用想要紫色渐变标题 */
h2 {
font-family: 'Microsoft YaHei', sans-serif !important;
font-size: 20px !important;
color: #667eea !important;
border-bottom: 2px solid #667eea !important;
padding-bottom: 8px !important;
margin: 12px 0 !important;
text-transform: none !important;
border-left: none !important;
}
/* 冲突点 ②button — 主应用想要紫色直角按钮 */
button {
background: #667eea !important;
color: #fff !important;
border: none !important;
border-radius: 4px !important;
padding: 6px 16px !important;
font-size: 13px !important;
font-weight: 500 !important;
cursor: pointer !important;
letter-spacing: 0 !important;
}
button:hover {
background: #5a6fd6 !important;
transform: none !important;
}
/* 冲突点 ③p 段落 — 主应用想要紧凑排版 */
p {
font-size: 14px !important;
line-height: 1.6 !important;
color: #444 !important;
margin-bottom: 8px !important;
}
/* 冲突点 ④table — 主应用想要紫色无边框表格 */
table {
border-collapse: collapse !important;
width: 100% !important;
border: none !important;
}
th {
background: #667eea !important;
color: white !important;
padding: 8px !important;
text-align: left !important;
font-size: 13px !important;
}
td {
padding: 6px 8px !important;
border-bottom: 1px solid #e0e0e0 !important;
font-size: 13px !important;
}
/* 冲突点 ⑤code 标签 — 主应用想要紫色代码块 */
code {
background: #e8e0f0 !important;
color: #5e35b1 !important;
border: 1px solid #b39ddb !important;
padding: 2px 6px !important;
border-radius: 3px !important;
font-size: 13px !important;
}
/* 主应用布局 */
.main-style-source {
display: inline-block;
padding: 2px 10px;
border-radius: 4px;
font-size: 11px;
font-weight: bold;
margin-left: 8px;
}
.label-main {
background: #667eea;
color: white;
}
#main-app {
display: flex;
flex-direction: column;