无法显示codepen图标

Question

我正在尝试使用font-awesome图标，但我无法看到codepen图标。所有其他图标工作正常。有什么方法可以让我的Instagram图标颜色与这种颜色合并吗？我尝试使用字体awesome提供的其他图标，它似乎工作。我也尝试用其他图标更改codepen图标的位置，但似乎没有用。另一件事，动画似乎是在图标所在的地方工作，但它没有显示anthing。

html {
  font-size: 1.5em;
}

body {
  background-color: #fff;
  padding: 10px;
  text-align: center;
}


/* Wrapper */

.icon-button {
  background-color: white;
  /*	border-radius: 2.6rem;*/
  cursor: pointer;
  display: inline-block;
  font-size: 1.3rem;
  height: 2.6rem;
  line-height: 2.6rem;
  margin: 0 5px;
  position: relative;
  text-align: center;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  width: 2.6rem;
}


/* Circle */

.icon-button span {
  /*	border-radius: 0;*/
  display: block;
  height: 0;
  left: 50%;
  margin: 0;
  position: absolute;
  top: 50%;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  -o-transition: all 0.3s;
  transition: all 0.3s;
  width: 0;
}

.icon-button:hover span {
  border-radius: 25px;
  width: 2.6rem;
  height: 2.6rem;
  /*border-radius: 2.6rem;*/
  margin: -1.3rem;
  /*transform: rotate(20deg);*/
}


/* Icons */

.icon-button i {
  background: none;
  color: white;
  height: 2.6rem;
  left: 0;
  line-height: 2.6rem;
  position: absolute;
  top: 0;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  -o-transition: all 0.3s;
  transition: all 0.3s;
  width: 2.6rem;
  z-index: 10;
}

.facebook span {
  background-color: #3B5998;
}

.instagram span {
  background-color: #c32aa3;
  /*background-color: linear-gradient(#c32aa3, #c4302b);*/
}

.codepen span {
  background-color: #cb2027;
}

.icon-button .icon-facebook {
  color: #3B5998;
}

.icon-button .fa-instagram {
  color: #c32aa3;
}

.icon-button .fa-codepen {
  color: #cb2027;
}

.icon-button:hover .icon-facebook,
.icon-button:hover .fa-instagram,
.icon-button:hover .fa-codepen {
  color: white;
}

@media all and (max-width: 680px) {
  .icon-button {
    border-radius: 1.6rem;
    font-size: 0.8rem;
    height: 1.6rem;
    line-height: 1.6rem;
    width: 1.6rem;
  }
  .icon-button:hover span {
    width: 1.6rem;
    height: 1.6rem;
    border-radius: 1.6rem;
    margin: -0.8rem;
  }
  /* Icons */
  .icon-button i {
    height: 1.6rem;
    line-height: 1.6rem;
    width: 1.6rem;
  }
  body {
    padding: 10px;
  }
}

<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">

<a href="#" class="icon-button facebook"><i class="icon-facebook"></i><span></span></a>
<a href="#" class="icon-button instagram"><i class="fa fa-instagram"></i><span></span></a>
<a href="#" class="icon-button codepen"><i class="fa fa-codepen"></i><span></span></a>

Answer 1

首先，您需要将Font Awesome CSS导入到您的示例中。

<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">

由于<i> class中的错误，我在获取Facebook图标时遇到问题：

<a href="#" class="icon-button facebook">
  <i class="icon-facebook"></i><span></span>
</a>
<a href="#" class="icon-button instagram">
  <i class="fa fa-instagram"></i><span></span>
</a>

我将Facebook HTML更改为以下内容并相应调整了CSS以使图标正常工作。

<a href="#" class="icon-button facebook">
  <i class="fa fa-facebook"></i><span></span>
</a>

html {
  font-size: 1.5em;
}

body {
  background-color: #fff;
  padding: 10px;
  text-align: center;
}


/* Wrapper */

.icon-button {
  background-color: white;
  /*	border-radius: 2.6rem;*/
  cursor: pointer;
  display: inline-block;
  font-size: 1.3rem;
  height: 2.6rem;
  line-height: 2.6rem;
  margin: 0 5px;
  position: relative;
  text-align: center;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  width: 2.6rem;
}


/* Circle */

.icon-button span {
  /*	border-radius: 0;*/
  display: block;
  height: 0;
  left: 50%;
  margin: 0;
  position: absolute;
  top: 50%;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  -o-transition: all 0.3s;
  transition: all 0.3s;
  width: 0;
}

.icon-button:hover span {
  border-radius: 25px;
  width: 2.6rem;
  height: 2.6rem;
  /*border-radius: 2.6rem;*/
  margin: -1.3rem;
  /*transform: rotate(20deg);*/
}


/* Icons */

.icon-button i {
  background: none;
  color: white;
  height: 2.6rem;
  left: 0;
  line-height: 2.6rem;
  position: absolute;
  top: 0;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  -o-transition: all 0.3s;
  transition: all 0.3s;
  width: 2.6rem;
  z-index: 10;
}

.facebook span {
  background-color: #3B5998;
}

.instagram span {
  background-color: #c32aa3;
  /*background-color: linear-gradient(#c32aa3, #c4302b);*/
}

.codepen span {
  background-color: #cb2027;
}

.icon-button .fa-facebook {
  color: #3B5998;
}

.icon-button .fa-instagram {
  color: #c32aa3;
}

.icon-button .fa-codepen {
  color: #cb2027;
}

.icon-button:hover .fa-facebook,
.icon-button:hover .fa-instagram,
.icon-button:hover .fa-codepen {
  color: white;
}

@media all and (max-width: 680px) {
  .icon-button {
    border-radius: 1.6rem;
    font-size: 0.8rem;
    height: 1.6rem;
    line-height: 1.6rem;
    width: 1.6rem;
  }
  .icon-button:hover span {
    width: 1.6rem;
    height: 1.6rem;
    border-radius: 1.6rem;
    margin: -0.8rem;
  }
  /* Icons */
  .icon-button i {
    height: 1.6rem;
    line-height: 1.6rem;
    width: 1.6rem;
  }
  body {
    padding: 10px;
  }
}

<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
<a href="#" class="icon-button facebook"><i class="fa fa-facebook"></i><span></span></a>
<a href="#" class="icon-button instagram"><i class="fa fa-instagram"></i><span></span></a>
<a href="#" class="icon-button codepen"><i class="fa fa-codepen"></i><span></span></a>

编辑（线性渐变示例）

html {
  font-size: 1.5em;
}

body {
  background-color: #fff;
  padding: 10px;
  text-align: center;
}


/* Wrapper */

.icon-button {
  background-color: white;
  /*	border-radius: 2.6rem;*/
  cursor: pointer;
  display: inline-block;
  font-size: 1.3rem;
  height: 2.6rem;
  line-height: 2.6rem;
  margin: 0 5px;
  position: relative;
  text-align: center;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  width: 2.6rem;
}


/* Circle */

.icon-button span {
  /*	border-radius: 0;*/
  display: block;
  height: 0;
  left: 50%;
  margin: 0;
  position: absolute;
  top: 50%;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  -o-transition: all 0.3s;
  transition: all 0.3s;
  width: 0;
}

.icon-button:hover span {
  border-radius: 25px;
  width: 2.6rem;
  height: 2.6rem;
  /*border-radius: 2.6rem;*/
  margin: -1.3rem;
  /*transform: rotate(20deg);*/
}


/* Icons */

.icon-button i {
  background: none;
  color: white;
  height: 2.6rem;
  left: 0;
  line-height: 2.6rem;
  position: absolute;
  top: 0;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  -o-transition: all 0.3s;
  transition: all 0.3s;
  width: 2.6rem;
  z-index: 10;
}

.instagram span {
  background: linear-gradient(#c32aa3, #333333);
}

.icon-button .fa-instagram {
  color: #c32aa3;
}

.icon-button:hover .fa-instagram {
  color: white;
}

@media all and (max-width: 680px) {
  .icon-button {
    border-radius: 1.6rem;
    font-size: 0.8rem;
    height: 1.6rem;
    line-height: 1.6rem;
    width: 1.6rem;
  }
  .icon-button:hover span {
    width: 1.6rem;
    height: 1.6rem;
    border-radius: 1.6rem;
    margin: -0.8rem;
  }
  /* Icons */
  .icon-button i {
    height: 1.6rem;
    line-height: 1.6rem;
    width: 1.6rem;
  }
  body {
    padding: 10px;
  }
}

<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
<a href="#" class="icon-button instagram"><i class="fa fa-instagram"></i><span></span></a>