Dengan menambahkan atribut scoped pada tag <style>, aturan CSS hanya akan diterapkan pada elemen di dalam komponen tersebut.
Konsep Kunci Materi:
- Atribut Data Unik: Kompiler PostCSS otomatis menambahkan atribut penanda acak seperti
[data-v-f3f3eg9] ke elemen DOM dan selektor CSS. - Mencegah Tabrakan Gaya (Style Leaks): Nama kelas umum seperti
.button atau .title tidak akan saling menimpa antar komponen berbeda. - Deep Selector: Gunakan selektor pseudo
:deep(.elemen-anak) untuk menargetkan elemen anak secara terarah.
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<script src="https://unpkg.com/vue@3/dist/vue.global.js"></script>
<style>
body {
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
background: #f8fafc;
color: #1e293b;
padding: 24px;
margin: 0;
line-height: 1.6;
}
.vue-app-container {
background: white;
border-radius: 12px;
padding: 24px;
max-width: 520px;
margin: 0 auto;
box-shadow: 0 4px 15px rgba(0,0,0,0.06);
border-top: 4px solid #42b883;
}
.vue-header {
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 18px;
padding-bottom: 12px;
border-bottom: 1px solid #f1f5f9;
}
.vue-title {
font-weight: 700;
color: #0d2e5c;
font-size: 16px;
display: flex;
align-items: center;
gap: 8px;
}
.badge-vue {
background: #42b883;
color: white;
padding: 3px 10px;
border-radius: 20px;
font-size: 11px;
font-weight: 700;
}
button {
background: #42b883;
color: white;
border: none;
padding: 8px 16px;
border-radius: 6px;
cursor: pointer;
font-weight: 600;
font-size: 13px;
transition: all 0.2s;
}
button:hover {
background: #33a06f;
}
input, select, textarea {
padding: 8px 12px;
border: 1px solid #cbd5e1;
border-radius: 6px;
font-size: 14px;
box-sizing: border-box;
outline: none;
}
input:focus, select:focus, textarea:focus {
border-color: #42b883;
box-shadow: 0 0 0 3px rgba(66, 184, 131, 0.15);
}
.pill {
display: inline-block;
background: #e2e8f0;
padding: 4px 10px;
border-radius: 12px;
font-size: 12px;
margin: 2px;
}
</style>
</head>
<body>
<div id="app" class="vue-app-container">
<div class="vue-header">
<span class="vue-title">🟢 Vue Scoped Styling</span>
<span class="badge-vue">Vue 3 Live</span>
</div>
<div style="background:#1e293b; color:#f8fafc; padding:14px; border-radius:8px; font-family:monospace; font-size:13px;">
<span style="color:#94a3b8;"><!-- Tombol.vue --></span><br>
<template><br>
<button class="btn">Tombol Terisolasi</button><br>
</template><br><br>
<span style="color:#4ade80;"><style scoped></span><br>
.btn {<br>
background: #42b883;<br>
/* Hanya berlaku untuk komponen ini via atribut [data-v-xxxxxx] */<br>
}<br>
<span style="color:#4ade80;"></style></span>
</div>
</div>
<script>
const { createApp, ref, reactive, computed, watch, onMounted } = Vue;
createApp({}).mount('#app');
</script>
</body>
</html>
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