• Borders
    • Border
      • Additive
      • Subtractive
    • Border color
    • Border-radius
    • Sizes

    Borders

    Use border utilities to quickly style the border and border-radius of an element. Great for images, buttons, or any other element.

    Border

    Use border utilities to add or remove an element’s borders. Choose from all borders or one at a time.

    Additive

    Borders - 图1

    1. <span class="border"></span>
    2. <span class="border-top"></span>
    3. <span class="border-right"></span>
    4. <span class="border-bottom"></span>
    5. <span class="border-left"></span>

    Subtractive

    Borders - 图2

    1. <span class="border-0"></span>
    2. <span class="border-top-0"></span>
    3. <span class="border-right-0"></span>
    4. <span class="border-bottom-0"></span>
    5. <span class="border-left-0"></span>

    Border color

    Change the border color using utilities built on our theme colors.

    Borders - 图3

    1. <span class="border border-primary"></span>
    2. <span class="border border-secondary"></span>
    3. <span class="border border-success"></span>
    4. <span class="border border-danger"></span>
    5. <span class="border border-warning"></span>
    6. <span class="border border-info"></span>
    7. <span class="border border-light"></span>
    8. <span class="border border-dark"></span>
    9. <span class="border border-white"></span>

    Border-radius

    Add classes to an element to easily round its corners.

    Borders - 图4

    1. <img src="..." alt="..." class="rounded">
    2. <img src="..." alt="..." class="rounded-top">
    3. <img src="..." alt="..." class="rounded-right">
    4. <img src="..." alt="..." class="rounded-bottom">
    5. <img src="..." alt="..." class="rounded-left">
    6. <img src="..." alt="..." class="rounded-circle">
    7. <img src="..." alt="..." class="rounded-pill">
    8. <img src="..." alt="..." class="rounded-0">

    Sizes

    Use .rounded-lg or .rounded-sm for larger or smaller border-radius.

    Borders - 图5

    1. <img src="..." alt="..." class="rounded-sm">
    2. <img src="..." alt="..." class="rounded-lg">