Is there a way to modify the color of a specific section of a font icon?

Currently, I am in the process of implementing an upvote button using fa fa signs. However, I have encountered an issue where the background color of the up vote button is bleeding outside of the sign (possibly due to padding on the icon), and I am striving to conceal this outer padding. Ideally, the color should only be contained inside the upvote sign.

<link href="https://cdn.jsdelivr.net/gh/hung1001/font-awesome-pro@4cac1a6/css/all.css" rel="stylesheet" type="text/css" />
<i  class="fal voteup fa-sort-up fa-4x"></i>

.voteup {
  background-color : red;
}
<link href="https://cdn.jsdelivr.net/gh/hung1001/font-awesome-pro@4cac1a6/css/all.css" rel="stylesheet" type="text/css" />
<i  class="fal voteup fa-sort-up fa-4x"></i>

I have attempted to resolve the issue by applying padding: none;, but unfortunately, it did not work as expected.

If anyone can offer assistance with this matter, it would be greatly appreciated.

javascripthtmlcssfont-awesome

Answer №1

If you prefer to maintain the black outline, a solution is to layer two icons (solid + regular) on top of each other:

#outline {
  position: absolute;
  z-index: 2;
}

#background {
  color: red;
  position: relative;
  z-index: 1;
}
<link href="https://cdn.jsdelivr.net/gh/hung1001/font-awesome-pro@4cac1a6/css/all.css" rel="stylesheet" type="text/css" />
<i class="fal voteup fa-sort-up fa-4x" id="outline"></i>
<i class="fas voteup fa-sort-up fa-4x" id="background"></i>

Pay attention to the order of HTML elements and z-index.

Answer №2

Unfortunately, using a standard font file does not allow for multicolored fonts like you are requesting. There is a new format that supports this feature, but it is not widely available yet and Fontawesome cannot be accessed in that way anyway.

If you need arrows with different colored outlines and fills, your best bet would be to utilize an image, such as an SVG. You can obtain Fontawesome symbols as SVG files, open them in software like Inkscape, and customize the fills to your liking.

For solid arrows, you can opt for the Fontawesome solid variant by replacing the fal class with fas.

Answer №3

Utilize CSS to implement the properties of the filled icon character without the need for extra markup. This approach offers the convenience of achieving the desired outcome seamlessly.

.voteup {
  position: relative; /* enables absolute positioning for child elements */
}

.voteup:after {
  content: "\f0de"; /* defines the character code */
  font-weight: 900; /* specifies the character variant */
  color: red;
  position: absolute; /* places it in reference to the parent element */
  left: 0;
  z-index: -1; /* used as :before is active, placing it behind */
}
<link href="https://cdn.jsdelivr.net/gh/hung1001/font-awesome-pro@4cac1a6/css/all.css" rel="stylesheet" type="text/css" />
<i class="fal voteup fa-sort-up fa-4x"></i>

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