provides a responsive fixed width container
provides a full width container, spanning the entire width of the viewport
||Extra small
<576px|Small
≥576px|Medium
≥768px|Large
≥992px|Extra Large
≥1200px|XXL
≥1400px|
|-|-|-|-|-|-|-|
|max-width|100%|540px|720px|960px|1140px|1320px|
```html !– 고정 된 크기 3개의 컬럼 –>
Lorem ipsum dolor sit amet.
### [Grid](https://www.w3schools.com/bootstrap5/bootstrap_grid_basic.php)
<table class="table grid">
<tbody><tr>
<td>span 1</td>
<td>span 1</td>
<td>span 1</td>
<td>span 1</td>
<td>span 1</td>
<td>span 1</td>
<td>span 1</td>
<td>span 1</td>
<td>span 1</td>
<td>span 1</td>
<td>span 1</td>
<td>span 1</td>
</tr>
<tr>
<td colspan="4"> span 4</td>
<td colspan="4"> span 4</td>
<td colspan="4"> span 4</td>
</tr>
<tr>
<td colspan="4">span 4</td>
<td colspan="8">span 8</td>
</tr>
<tr>
<td colspan="6">span 6</td>
<td colspan="6">span 6</td>
</tr>
<tr>
<td colspan="12">span 12</td>
</tr>
</tbody></table>
## [Typography](https://www.w3schools.com/bootstrap5/bootstrap_typography.php)
```html
<!-- Headings -->
<!-- h1~h6 & Bolder font-weight -->
<p class="h1">h1 Bootstrap heading</p>
<p class="h2">h2 Bootstrap heading</p>
<p class="h3">h3 Bootstrap heading</p>
<p class="h4">h4 Bootstrap heading</p>
<p class="h5">h5 Bootstrap heading</p>
<p class="h6">h6 Bootstrap heading</p>
<!-- Display Headings -->
<!-- Larger font-size & Lighter font-weight -->
<h1 class="display-1">Display 1</h1>
<h1 class="display-2">Display 2</h1>
<h1 class="display-3">Display 3</h1>
<h1 class="display-4">Display 4</h1>
<h1 class="display-5">Display 5</h1>
<h1 class="display-6">Display 6</h1>
Adds rounded corners to an image
Shapes the image to a circle
Shapes the image to a thumbnail (bordered)
Float an image to the left
Float an image to the right
Responsive Images