伪元素上的 Font Awesome 5 显示正方形而不是图标

2022-01-30 00:00:00 pseudo-element html css font-awesome font-awesome-5

我正在尝试直接从 CSS 页面使用 Font Awesome 图标更改 span 的内容，但似乎无法使其正常工作.

1) 我已经从文档和 <head>

中导入了 FA

<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.0.9/css/all.css" integrity="sha384-5SOiIsAziJl6AWe0HWRKTXlfcSHKmYV4RBF18PPJ173Kzn7jzMyFuTtk8JA7QQG1" crossorigin="anonymous">

2) 我的 html 看起来像这样:

<span class='myClass'>电影</span>

3) 现在假设我想直接从 CSS 页面使用图标更改 span 的内容.

我的 CSS 目前看起来像这样，但它不起作用，它给了我一个正方形而不是图标.

.myClass {字体大小:25px；}.myClass::{之后font-family: 'Font Awesome 5 Free';内容:'f008';}

<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.0.9/css/所有.css"><span class='myClass'></span>

有趣的是，它看起来像是在使用一些图标.如果我使用 content: 'f007'; 进行测试，它可以工作.知道为什么吗?

(如果你想知道为什么我要直接在 CSS 中更改图标，那是因为我使用的是媒体查询，所以我不能直接在 HTML 页面中添加它)

解决方案

^{如果您使用的是 JS+SVG 版本，请阅读:}

为什么另一个图标在起作用?

因为 f007 是这个图标:

相关问题

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Font Awesome 5 unicode

Font Awesome 5，为什么css内容不显示?

I am trying to change the content of a span with a Font Awesome icon directly from the CSS page but can't seem to make it work properly.

1) I have imported FA from the documentation and in the <head>

<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.0.9/css/all.css" integrity="sha384-5SOiIsAziJl6AWe0HWRKTXlfcSHKmYV4RBF18PPJ173Kzn7jzMyFuTtk8JA7QQG1" crossorigin="anonymous">

2) My html looks like this :

<span class='myClass'>Movies</span>

3) Let's now say I would like to change the content of the span with an icon directly from the CSS Page.

My css currently looks like this but it isn't working, it gives me a square instead of the icon.

.myClass {
  font-size:25px;
}

.myClass::after {
  font-family: 'Font Awesome 5 Free';
  content: 'f008';
}

<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.0.9/css/all.css">
<span class='myClass'></span>

Funny thing is that it looks like it is working with some icons. If I test with content: 'f007'; it works. Any idea why?

(And if you wonder why I want to change the icon directly in the CSS, it is because I am using media queries so I can't add it directly in the HTML page)

解决方案

^{If you are using the JS+SVG version read this: Font Awesome 5 shows empty square when using the JS+SVG version}

You need to add

`font-weight:900`

.myClass {
  font-size:45px;
}

.myClass::after {
  font-family: 'Font Awesome 5 Free';
  content: "f008";
  font-weight: 900;
}

<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.13.0/css/all.css">
<span class='myClass'></span>

The regular version of the icon, defined by the default font-weight, is PRO so it will show an empty square. What you need is the solid version:

https://fontawesome.com/icons/film?style=solid

Why the other icon is working?

Because the f007 is this icon : https://fontawesome.com/icons/user?style=regular and as you can see, the regular one is not PRO and is included in the free package so you don't need to specify a font-weight. You only need to specify it when you want to show the solid version.

.myClass::after {
  font-family: 'Font Awesome 5 Free';
  content: "f007";
  visibility: visible;
  font-weight: 900;
}

.myClass-1::after {
  font-family: 'Font Awesome 5 Free';
  content: "f007";
  visibility: visible;
}

<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.12.0/css/all.css">
<span class='myClass'>Solid </span>
<br>
<span class='myClass-1'>Regular </span>

As a side note, all the light and duotone versions are included in the Pro package so will always show empty square whataver the font-weight used

You can check the documentation for more details : https://fontawesome.com/how-to-use/on-the-web/advanced/css-pseudo-elements