Example of underline at 6x   Example of underline at 5x    Example of underline at 4x    Example of underline at 3x    Example of underline at 2x   Example of underline

fa-underline underline   下划线    

After you get up and running, you can place Font Awesome icons just about anywhere with the <i> tag:

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Example of underline fa-underline
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<i class="fa fa-underline" aria-hidden="true"></i>

Note: to improve web accessibility, we recommend using aria-hidden="true" to hide icons used purely for decoration.

Looking for more? Check out the examples.
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