Question

尝试在按钮上创建向右滑动过渡。如果我删除.container背景颜色，则转换有效。但我希望按钮开始变黑并变为黄色，同时保持容器颜色为默认值。但输出似乎不同。如果按钮背景是透明的，它将仅转换为黄色。任何帮助都是值得赞赏的，在这方面已经过了很长时间。

.container {
	background: #F0F0F0;
	margin: 20px 20%
}
a.animated-button:link, a.animated-button:visited {
	position: relative;
	display: block;
	margin: 30px auto 0;
	padding: 14px 15px;
	color: #fff;
	font-size: 14px;
	text-align: center;
	text-decoration: none;
	text-transform: uppercase;
	overflow: hidden;
	-webkit-transition: all 1s ease;
	-moz-transition: all 1s ease;
	-o-transition: all 1s ease;
	transition: all 1s ease;
}
a.animated-button:link:after, a.animated-button:visited:after {
	content: "";
	position: absolute;
	height: 0%;
	left: 50%;
	top: 50%;
	width: 150%;
	z-index: -1;
	-webkit-transition: all 0.75s ease 0s;
	-moz-transition: all 0.75s ease 0s;
	-o-transition: all 0.75s ease 0s;
	transition: all 0.75s ease 0s;
}
a.animated-button:link:hover, a.animated-button:visited:hover {
	color: #FFF;
}
a.animated-button:link:hover:after, a.animated-button:visited:hover:after {
	height: 450%;
}
a.animated-button:link, a.animated-button:visited {
	position: relative;
	display: block;
	margin: 30px auto 0;
	padding: 14px 15px;
	color: #fff;
	font-size: 14px;
	border-radius: 0;
	font-weight: bold;
	text-align: center;
	text-decoration: none;
	text-transform: uppercase;
	overflow: hidden;
	letter-spacing: .08em;
	text-shadow: 0 0 1px rgba(0, 0, 0, 0.2), 0 1px 0 rgba(0, 0, 0, 0.2);
	-webkit-transition: all 1s ease;
	-moz-transition: all 1s ease;
	-o-transition: all 1s ease;
	transition: all 1s ease;
}
a.animated-button.thar-three {
	color: #fff;
	cursor: pointer;
	display: block;
	position: relative;
	border: 2px solid #F7CA18;
	transition: all 0.4s cubic-bezier(0.42, 0, 0.58, 1) 0s;
}
a.animated-button.thar-three:hover {
	color: #000 !important;
}
a.animated-button.thar-three:hover:before {
	left: 0%;
	right: auto;
	width: 100%;
}
a.animated-button.thar-three:before {
	display: block;
	position: absolute;
	top: 0px;
	right: 0px;
	height: 100%;
	width: 0px;
	z-index: -1;
	content: '';
	color: #000 !important;
	background: #F7CA18;
	transition: all 0.4s cubic-bezier(0.42, 0, 0.58, 1) 0s;
}

        <div class="container">
          <p><a href="#" class="animated-button thar-three">Register</a></p>
        </div>

Answer 1

正如您所写的那样，您的::before伪元素低于.container元素，因为.container和锚点（a）都是在同一个z-index上。

要将它放在锚和容器之间，你需要让你的锚在z轴的容器上方，即设置它的z-index。

＆＃13;

a.animated-button.thar-three {
  color: #fff;
  cursor: pointer;
  display: block;
  position: relative;
  border: 2px solid #F7CA18;
  transition: all 0.4s cubic-bezier(0.42, 0, 0.58, 1) 0s;
  /* place it at a higher z-index than its parent ... */
  z-index: 1;
}

a.animated-button.thar-three:before {
  display: block;
  position: absolute;
  top: 0px;
  right: 0px;
  height: 100%;
  width: 0px;
  /* ... to make this be in-between .container and the a */
  z-index: -1;
  content: '';
  color: #000 !important;
  background: #F7CA18;
  transition: all 0.4s cubic-bezier(0.42, 0, 0.58, 1) 0s;
}

.container {
  background: #F0F0F0;
  margin: 20px 20%
}

a.animated-button:link,
a.animated-button:visited {
  position: relative;
  display: block;
  margin: 30px auto 0;
  padding: 14px 15px;
  color: #fff;
  font-size: 14px;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  overflow: hidden;
  -webkit-transition: all 1s ease;
  -moz-transition: all 1s ease;
  -o-transition: all 1s ease;
  transition: all 1s ease;
}

a.animated-button:link:after,
a.animated-button:visited:after {
  content: "";
  position: absolute;
  height: 0%;
  left: 50%;
  top: 50%;
  width: 150%;
  z-index: -1;
  -webkit-transition: all 0.75s ease 0s;
  -moz-transition: all 0.75s ease 0s;
  -o-transition: all 0.75s ease 0s;
  transition: all 0.75s ease 0s;
}

a.animated-button:link:hover,
a.animated-button:visited:hover {
  color: #FFF;
}

a.animated-button:link:hover:after,
a.animated-button:visited:hover:after {
  height: 450%;
}

a.animated-button:link,
a.animated-button:visited {
  position: relative;
  display: block;
  margin: 30px auto 0;
  padding: 14px 15px;
  color: #fff;
  font-size: 14px;
  border-radius: 0;
  font-weight: bold;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  overflow: hidden;
  letter-spacing: .08em;
  text-shadow: 0 0 1px rgba(0, 0, 0, 0.2), 0 1px 0 rgba(0, 0, 0, 0.2);
  -webkit-transition: all 1s ease;
  -moz-transition: all 1s ease;
  -o-transition: all 1s ease;
  transition: all 1s ease;
}

a.animated-button.thar-three:hover {
  color: #000 !important;
}

a.animated-button.thar-three:hover:before {
  left: 0%;
  right: auto;
  width: 100%;
}

＆＃13;

<div class="container">
  <p><a href="#" class="animated-button thar-three">Register</a></p>
</div>

＆＃13;

Answer 2

我调整了一下代码，现在即使设置了黑色背景，容器也能正常工作。它现在从黑色到黄色的动画。此外，我还删除了黄色边框以创建光滑的动画外观。

这是工作片段。

.container {
	background: #F0F0F0;
	margin: 20px 20%
}
a.animated-button:link, a.animated-button:visited {
	position: relative;
	display: block;
	margin: 30px auto 0;
	padding: 14px 15px;
	color: #fff;
	font-size: 14px;
	text-align: center;
	text-decoration: none;
	text-transform: uppercase;
	overflow: hidden;
	-webkit-transition: all 1s ease;
	-moz-transition: all 1s ease;
	-o-transition: all 1s ease;
	transition: all 1s ease;
}
a.animated-button:link:after, a.animated-button:visited:after {
	content: "";
	position: absolute;
	height: 0%;
	left: 50%;
	top: 50%;
	width: 150%;
	z-index: -1;
	-webkit-transition: all 0.75s ease 0s;
	-moz-transition: all 0.75s ease 0s;
	-o-transition: all 0.75s ease 0s;
	transition: all 0.75s ease 0s;
}
a.animated-button:link:hover, a.animated-button:visited:hover {
	color: #FFF;
}
a.animated-button:link:hover:after, a.animated-button:visited:hover:after {
	height: 450%;
}
a.animated-button:link, a.animated-button:visited {
	position: relative;
	display: block;
	margin: 30px auto 0;
	padding: 14px 15px;
	color: #fff;
	font-size: 14px;
	border-radius: 0;
	font-weight: bold;
	text-align: center;
	text-decoration: none;
	text-transform: uppercase;
	overflow: hidden;
	letter-spacing: .08em;
  z-index: 1;
	text-shadow: 0 0 1px rgba(0, 0, 0, 0.2), 0 1px 0 rgba(0, 0, 0, 0.2);
	-webkit-transition: all 1s ease;
	-moz-transition: all 1s ease;
	-o-transition: all 1s ease;
	transition: all 1s ease;
}
a.animated-button.thar-three {
	color: #fff;
	cursor: pointer;
	display: block;
	position: relative;
	
	transition: all 0.4s cubic-bezier(0.42, 0, 0.58, 1) 0s;
  background-color: black;
}
a.animated-button.thar-three:hover {
	color: #000 !important;
}
a.animated-button.thar-three:hover:before {
	left: 0%;
	right: auto;
	width: 100%;
}
a.animated-button.thar-three:before {
	display: block;
	position: absolute;
	top: 0px;
	right: 0px;
	height: 100%;
	width: 0px;
	z-index: -1;
	content: '';
	color: #000 !important;
	background: #F7CA18;
	transition: all 0.4s cubic-bezier(0.42, 0, 0.58, 1) 0s;
}

<div class="container">
          <p><a href="#" class="animated-button thar-three">Register</a></p>
        </div>

CSS Tranistion按钮背景颜色

2 个答案: