Font Awesome 5在伪元素中选择正确的字体系列 [英] Font Awesome 5 Choosing the correct font-family in pseudo-elements

问题描述

我目前对在CSS伪元素中使用图标感到困惑. fontawesome有4种字体家族:Font Awesome 5 Free，Font Awesome 5 Solid，Font Awesome 5 Brands，Font Awesome 5 Regular

这是HTML:

<h1>Hello</h1>

案例1

我使用以下图标: https://fontawesome.com/icons/twitter?style=品牌

如您所见，它是一个brands图标，所以font-family:Font Awesome 5 Brands

h1:before {
  display: inline-block;
  font-style: normal;
  font-variant: normal;
  text-rendering: auto;
  -webkit-font-smoothing: antialiased;
  content: "\f099"; /* TWITTER ICON */
  font-family: "Font Awesome 5 Brands";
  font-weight: 400;
}

成功！

案例2

我使用以下图标: https://fontawesome.com/icons/phone?style=固体

如您所见，它是一个solid图标，因此是font-family:Font Awesome 5 Solid

h1:before {
  display: inline-block;
  font-style: normal;
  font-variant: normal;
  text-rendering: auto;
  -webkit-font-smoothing: antialiased;
  content: "\f095"; /* PHONE ICON */
  font-family: "Font Awesome 5 Solid";
  font-weight: 900;
}

不工作！

我做错了什么?

我们如何知道何时使用正确的字体系列?

解决方案

只需在同一font-family中全部使用它们，浏览器即可完成工作.如果它在第一个中找不到，它将使用第二个. ( Font-Family属性中的多种字体?)

顺便说一句，正确的font-family是Free而不是Solid，因为 Solid 和 Regular 之间的区别是font-weight，并且都具有相同的font-family. 在字体系列中没有 Solid和Regular，只有Free和Brands.

您可能还会注意到，图标的几乎所有Solid版本都是免费的，但并非所有regular版本都是免费的.其中一些包含在PRO软件包中.如果没有显示图标不一定是font-family问题.

所有Light和duotone版本均为PRO版本.

 .icon {
  display: inline-block;
  font-style: normal;
  font-variant: normal;
  text-rendering: auto;
  -webkit-font-smoothing: antialiased;
  font-family: "Font Awesome 5 Brands","Font Awesome 5 Free";
}

.icon1:before {
  content: "\f099";
  /* TWITTER ICON */
  font-weight: 400;
}

.icon2:before {
  content: "\f095";
  /* PHONE ICON */
  font-weight: 900;
}

.icon3:before {
  content: "\f095";
  /* PHONE ICON */
  font-weight: 400;/*This one will not work because the regular version of the phone icon is in the Pro Package*/
} 

 <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.11.0/css/all.css" >

<div class="icon1 icon"></div>
<div class="icon2 icon"></div>
<br>

<div class="icon3 icon"></div> 

参考: https://fontawesome.com/how-to-use/on-the-web/advanced/css-pseudo-elements#define

---

有关font-weight问题的相关问题:伪元素上的字体真棒5显示正方形而不是图标

I'm currently confused in using the icon in CSS pseudo-elements. There are 4 kind of font-family for fontawesome : Font Awesome 5 Free, Font Awesome 5 Solid, Font Awesome 5 Brands, Font Awesome 5 Regular

Here is the HTML :

<h1>Hello</h1>

Case 1

I use this icon : https://fontawesome.com/icons/twitter?style=brands

As you can see, its a brands icon, so font-family : Font Awesome 5 Brands

h1:before {
  display: inline-block;
  font-style: normal;
  font-variant: normal;
  text-rendering: auto;
  -webkit-font-smoothing: antialiased;
  content: "\f099"; /* TWITTER ICON */
  font-family: "Font Awesome 5 Brands";
  font-weight: 400;
}

IT WORKS!

Case 2

I use this icon : https://fontawesome.com/icons/phone?style=solid

As you can see, its a solid icon, so font-family : Font Awesome 5 Solid

h1:before {
  display: inline-block;
  font-style: normal;
  font-variant: normal;
  text-rendering: auto;
  -webkit-font-smoothing: antialiased;
  content: "\f095"; /* PHONE ICON */
  font-family: "Font Awesome 5 Solid";
  font-weight: 900;
}

DOESN'T WORK!

What did i do wrong?

How do we know when to use the correct font-family?

解决方案

Simply use all of them in the same font-family and the browser will do the job. If it doesn't find it in the first one, it will use the second one. (Multiple fonts in Font-Family property?)

By the way, the correct font-family is Free not Solid because the difference between Solid and Regular is the font-weight and both have the same font-family. There is no Solid and Regular in font-family, only Free and Brands.

You may also notice that almost all the Solid version of the icons are free BUT not all the regular version are free. Some of them are included in the PRO package. If an icon is not showing it's not necessarely a font-family issue.

All the Light and duotone version are PRO ones.

.icon {
  display: inline-block;
  font-style: normal;
  font-variant: normal;
  text-rendering: auto;
  -webkit-font-smoothing: antialiased;
  font-family: "Font Awesome 5 Brands","Font Awesome 5 Free";
}

.icon1:before {
  content: "\f099";
  /* TWITTER ICON */
  font-weight: 400;
}

.icon2:before {
  content: "\f095";
  /* PHONE ICON */
  font-weight: 900;
}

.icon3:before {
  content: "\f095";
  /* PHONE ICON */
  font-weight: 400;/*This one will not work because the regular version of the phone icon is in the Pro Package*/
}

<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.11.0/css/all.css" >

<div class="icon1 icon"></div>
<div class="icon2 icon"></div>
<br>

<div class="icon3 icon"></div>

Reference: https://fontawesome.com/how-to-use/on-the-web/advanced/css-pseudo-elements#define

---

Related question dealing with the font-weight issue: Font Awesome 5 on pseudo elements shows square instead of icon

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