Borders
用於控制元素邊框寬度的通用類別。
| Class | Styles |
|---|---|
border | border-width: 1px; |
border-<number> | border-width: <number>px; |
border-(length:<custom-property>) | border-width: var(<custom-property>); |
border-[<value>] | border-width: <value>; |
border-x | border-inline-width: 1px; |
border-x-<number> | border-inline-width: <number>px; |
border-x-(length:<custom-property>) | border-inline-width: var(<custom-property>); |
border-x-[<value>] | border-inline-width: <value>; |
border-y | border-block-width: 1px; |
border-y-<number> | border-block-width: <number>px; |
border-y-(length:<custom-property>) | border-block-width: var(<custom-property>); |
border-y-[<value>] | border-block-width: <value>; |
border-s | border-inline-start-width: 1px; |
border-s-<number> | border-inline-start-width: <number>px; |
border-s-(length:<custom-property>) | border-inline-start-width: var(<custom-property>); |
border-s-[<value>] | border-inline-start-width: <value>; |
border-e | border-inline-end-width: 1px; |
border-e-<number> | border-inline-end-width: <number>px; |
border-e-(length:<custom-property>) | border-inline-end-width: var(<custom-property>); |
border-e-[<value>] | border-inline-end-width: <value>; |
border-t | border-top-width: 1px; |
border-t-<number> | border-top-width: <number>px; |
border-t-(length:<custom-property>) | border-top-width: var(<custom-property>); |
border-t-[<value>] | border-top-width: <value>; |
border-r | border-right-width: 1px; |
border-r-<number> | border-right-width: <number>px; |
border-r-(length:<custom-property>) | border-right-width: var(<custom-property>); |
border-r-[<value>] | border-right-width: <value>; |
border-b | border-bottom-width: 1px; |
border-b-<number> | border-bottom-width: <number>px; |
border-b-(length:<custom-property>) | border-bottom-width: var(<custom-property>); |
border-b-[<value>] | border-bottom-width: <value>; |
border-l | border-left-width: 1px; |
border-l-<number> | border-left-width: <number>px; |
border-l-(length:<custom-property>) | border-left-width: var(<custom-property>); |
border-l-[<value>] | border-left-width: <value>; |
divide-x | & > :not(:last-child) {
border-inline-start-width: 0px;
border-inline-end-width: 1px;
} |
divide-x-<number> | & > :not(:last-child) {
border-inline-start-width: 0px;
border-inline-end-width: <number>px;
} |
divide-x-(length:<custom-property>) | & > :not(:last-child) {
border-inline-start-width: 0px;
border-inline-end-width: var(<custom-property>);
} |
divide-x-[<value>] | & > :not(:last-child) {
border-inline-start-width: 0px;
border-inline-end-width: <value>;
} |
divide-y | & > :not(:last-child) {
border-top-width: 0px;
border-bottom-width: 1px;
} |
divide-y-<number> | & > :not(:last-child) {
border-top-width: 0px;
border-bottom-width: <number>px;
} |
divide-y-(length:<custom-property>) | & > :not(:last-child) {
border-top-width: 0px;
border-bottom-width: var(<custom-property>);
} |
divide-y-[<value>] | & > :not(:last-child) {
border-top-width: 0px;
border-bottom-width: <value>;
} |
divide-x-reverse | --tw-divide-x-reverse: 1; |
divide-y-reverse | --tw-divide-y-reverse: 1; |
使用 border 或 border-2、border-4 等 border-<number> 通用類別來設定元素所有邊的邊框寬度：
border
border-2
border-4
border-8
<div class="border border-indigo-600 ..."></div><div class="border-2 border-indigo-600 ..."></div><div class="border-4 border-indigo-600 ..."></div><div class="border-8 border-indigo-600 ..."></div>使用 border-r 和 border-t-4 等通用類別來設定元素某一邊的邊框寬度：
border-t-4
border-r-4
border-b-4
border-l-4
<div class="border-t-4 border-indigo-500 ..."></div><div class="border-r-4 border-indigo-500 ..."></div><div class="border-b-4 border-indigo-500 ..."></div><div class="border-l-4 border-indigo-500 ..."></div>使用 border-x 和 border-y-4 等通用類別同時設定元素兩邊的邊框寬度：
border-x-4
border-y-4
<div class="border-x-4 border-indigo-500 ..."></div><div class="border-y-4 border-indigo-500 ..."></div>使用 border-s 和 border-e-4 等通用類別來設定 border-inline-start-width 和 border-inline-end-width 邏輯屬性，這些屬性會根據文字方向對應到左邊或右邊的邊框：
Left-to-right
Right-to-left
<div dir="ltr"> <div class="border-s-4 ..."></div></div><div dir="rtl"> <div class="border-s-4 ..."></div></div>使用 divide-x 和 divide-y-4 等通用類別在子元素之間新增邊框：
<div class="grid grid-cols-3 divide-x-4"> <div>01</div> <div>02</div> <div>03</div></div>如果你的元素是反向排列的（例如使用 flex-row-reverse 或 flex-col-reverse），請使用 divide-x-reverse 或 divide-y-reverse 通用類別以確保邊框被加到每個元素的正確邊：
<div class="flex flex-col-reverse divide-y-4 divide-y-reverse divide-gray-200"> <div>01</div> <div>02</div> <div>03</div></div>使用 border-[<value>] 語法，根據完全自訂的值來設定 border width：
<div class="border-[2vw] ..."> <!-- ... --></div>對於 CSS 變數，你也可以使用 border-(length:<custom-property>) 語法：
<div class="border-(length:--my-border-width) ..."> <!-- ... --></div>這只是 border-[length:var(<custom-property>)] 的簡寫形式，會自動為你加上 var() 函式。
在 border-width 通用類別前面加上像 md: 這樣的中斷點變體，讓該通用類別只在中型螢幕尺寸及以上時套用：
<div class="border-2 md:border-t-4 ..."> <!-- ... --></div>在變體文件中了解更多關於使用變體的資訊。