TailwindCSS 快速入门
2026-04-28· 技术· 0 次阅读· 阅读约 17 分钟
TailwindCSS 快速入门
TailwindCSS 是一个实用优先的 CSS 框架，它提供了大量的工具类，让你可以直接在 HTML 中构建自定义设计。
核心概念
TailwindCSS 的核心理念是实用优先（Utility-First），不同于 Bootstrap 等组件级框架，TailwindCSS 提供的是原子级的 CSS 类。
常用工具类
布局
flex/grid- 弹性布局 / 网格布局items-center- 垂直居中justify-between- 两端对齐gap-4- 间距
间距
p-4- 内边距m-4- 外边距px-4- 水平内边距py-2- 垂直内边距
文字
text-lg- 大号文字font-bold- 粗体text-gray-600- 灰色文字
响应式设计
TailwindCSS 使用移动优先的响应式设计：
sm:- 640px 以上md:- 768px 以上lg:- 1024px 以上xl:- 1280px 以上
<template>
<header class="bg-white/80 dark:bg-gray-900/80 backdrop-blur-md sticky top-0 z-50 h-16 border-b border-gray-200 dark:border-gray-800">
<div class="max-w-6xl mx-auto px-4 flex items-center justify-between h-full">
<NuxtLink to="/" class="text-xl font-bold text-primary no-underline">EasyBlog</NuxtLink>
<nav class="hidden md:flex items-center">
<NuxtLink
v-for="item in navItems"
:key="item.path"
:to="item.path"
class="mx-3 text-gray-600 dark:text-gray-400 hover:text-primary dark:hover:text-primary transition-colors no-underline text-sm"
>
{{ item.label }}
</NuxtLink>
</nav>
<div class="flex items-center gap-3">
<div class="relative hidden sm:block">
<svg class="absolute left-3 top-1/2 -translate-y-1/2 w-4 h-4 text-gray-400 dark:text-gray-500" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z"/>
</svg>
<input
v-model="searchQuery"
type="text"
placeholder="搜索文章..."
class="w-[200px] focus:w-[260px] transition-all duration-300 rounded-full bg-gray-100 dark:bg-gray-800 pl-10 pr-4 py-1.5 text-sm outline-none focus:ring-2 focus:ring-primary/30 text-gray-800 dark:text-gray-200 placeholder-gray-400 dark:placeholder-gray-500"
@keyup.enter="handleSearch"
/>
</div>
<button class="p-1.5 rounded-lg text-gray-500 dark:text-gray-400 hover:text-primary dark:hover:text-primary hover:bg-gray-100 dark:hover:bg-gray-800 transition-colors" @click="toggleTheme" :title="isDark ? '切换浅色' : '切换深色'">
<svg v-if="isDark" class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 3v1m0 16v1m9-9h-1M4 12H3m15.364 6.364l-.707-.707M6.343 6.343l-.707-.707m12.728 0l-.707.707M6.343 17.657l-.707.707M16 12a4 4 0 11-8 0 4 4 0 018 0z"/>
</svg>
<svg v-else class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M20.354 15.354A9 9 0 018.646 3.646 9.003 9.003 0 0012 21a9.003 9.003 0 008.354-5.646z"/>
</svg>
</button>
<a href="https://github.com" target="_blank" rel="noopener" class="text-gray-500 dark:text-gray-400 hover:text-primary dark:hover:text-primary transition-colors">
<svg class="w-5 h-5" fill="currentColor" viewBox="0 0 24 24"><path d="M12 0c-6.626 0-12 5.373-12 12 0 5.302 3.438 9.8 8.207 11.387.599.111.793-.261.793-.577v-2.234c-3.338.726-4.033-1.416-4.033-1.416-.546-1.387-1.333-1.756-1.333-1.756-1.089-.745.083-.729.083-.729 1.205.084 1.839 1.237 1.839 1.237 1.07 1.834 2.807 1.304 3.492.997.107-.775.418-1.305.762-1.604-2.665-.305-5.467-1.334-5.467-5.931 0-1.311.469-2.381 1.236-3.221-.124-.303-.535-1.524.117-3.176 0 0 1.008-.322 3.301 1.23.957-.266 1.983-.399 3.003-.404 1.02.005 2.047.138 3.006.404 2.291-1.552 3.297-1.23 3.297-1.23.653 1.653.242 2.874.118 3.176.77.84 1.235 1.911 1.235 3.221 0 4.609-2.807 5.624-5.479 5.921.43.372.823 1.102.823 2.222v3.293c0 .319.192.694.801.576 4.765-1.589 8.199-6.086 8.199-11.386 0-6.627-5.373-12-12-12z"/></svg>
</a>
<button class="md:hidden text-gray-600 dark:text-gray-400 p-1" @click="mobileMenuOpen = !mobileMenuOpen">
<svg v-if="!mobileMenuOpen" class="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 6h16M4 12h16M4 18h16"/>
</svg>
<svg v-else class="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12"/>
</svg>
</button>
</div>
</div>
<div v-if="mobileMenuOpen" class="md:hidden bg-white dark:bg-gray-900 border-t border-gray-200 dark:border-gray-800 px-4 py-3">
<NuxtLink
v-for="item in navItems"
:key="item.path"
:to="item.path"
class="block py-2.5 text-gray-600 dark:text-gray-400 hover:text-primary dark:hover:text-primary transition-colors no-underline text-sm"
@click.native="mobileMenuOpen = false"
>
{{ item.label }}
</NuxtLink>
<div class="mt-2 relative">
<svg class="absolute left-3 top-1/2 -translate-y-1/2 w-4 h-4 text-gray-400 dark:text-gray-500" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z"/>
</svg>
<input
v-model="searchQuery"
type="text"
placeholder="搜索文章..."
class="w-full rounded-full bg-gray-100 dark:bg-gray-800 pl-10 pr-4 py-1.5 text-sm outline-none focus:ring-2 focus:ring-primary/30 text-gray-800 dark:text-gray-200 placeholder-gray-400 dark:placeholder-gray-500"
@keyup.enter="handleSearch"
/>
</div>
</div>
</header>
</template>
<script>
export default {
name: 'TheHeader',
data() {
return {
searchQuery: '',
mobileMenuOpen: false,
isDark: false,
navItems: [
{ label: '首页', path: '/' },
{ label: '归档', path: '/archive' },
{ label: '分类', path: '/categories' },
{ label: '标签', path: '/tags' },
{ label: '专栏', path: '/collections' },
{ label: '关于', path: '/about' },
],
}
},
mounted() {
const saved = localStorage.getItem('theme')
if (saved === 'dark' || (!saved && window.matchMedia('(prefers-color-scheme: dark)').matches)) {
this.isDark = true
document.documentElement.classList.add('dark')
}
},
methods: {
handleSearch() {
if (this.searchQuery.trim()) {
this.$router.push({ path: '/', query: { q: this.searchQuery.trim() } })
this.mobileMenuOpen = false
}
},
toggleTheme() {
this.isDark = !this.isDark
if (this.isDark) {
document.documentElement.classList.add('dark')
localStorage.setItem('theme', 'dark')
} else {
document.documentElement.classList.remove('dark')
localStorage.setItem('theme', 'light')
}
},
},
}
</script>