为什么悬停效果重叠？

Question

当我将鼠标悬停在按钮上时，悬停效果与按钮的图标和标签重叠。我试图通过放置 z-index: 999; 将图标/标签 div 的图层移动到悬停效果之上，但它不起作用。

HTML

<div class="service-wrapper">
    <div class="services">
        <a href="#"><div class="button">
            <img src="https://png.icons8.com/?id=42205&size=36" class="iconBtn">
            <div class="serv-name">TECHNICAL SUPPORT</div>
        </div></a>
    </div>
    <div class="services">
        <a href="#"><div class="button">
            <img src="https://png.icons8.com/?id=7495&size=36" class="iconBtn"> 
            <div class="serv-name">CUSTOMER SERVICE</div>
        </div></a>
    </div>
</div>

CSS

.button {
    height: 40px;
    width: 230px;
    margin: 10px;
    padding: 5px;
    padding-right: 15px;
    padding-left: 15px;
    border-radius: 5px;
    background: #ffbb11; 
    text-align: center;
    color: #000000;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: space-around;
    overflow: hidden;
    position: relative;
}

 a {
    text-decoration:  none;
} 

.button::before,
.button::after {
    background: rgba(255, 255, 255, 1.0);
    content: '';
    position: absolute;
}

.button::after {
    height: 70px;
    left: -22%;
    top: 0;
    transform: skew(50deg);
    transition-duration: 0.3s;
    transform-origin: top;
    width: 0;
    z-index: 0;
}

.button:hover:after {
   height: 60px;
   width: 325px;
}

.iconBtn{
   max-height: 85%;
   max-width: 85%;
}

img:hover: {
   z-index: 999;
}

见JSFIDDLE

Answer 1

首先，您将z-index:999 附加到img:hover，这意味着您必须悬停图像才能应用它。您还在img:hover 之后添加了一个额外的:，所以它就像img:hover:。

此外，在标签中添加z-index:999 确实可以解决问题。你可以在这里看到结果：

.button {
	height: 40px;
	width: 230px;
 	margin: 10px;
    padding: 5px;
	padding-right: 15px;
	padding-left: 15px;
	border-radius: 5px;
    background: #ffbb11; 
	text-align: center;
	color: #000000;
	font-weight: bold;
	display: flex;
    align-items: center;
	justify-content: space-around;
	overflow: hidden;
  	position: relative;
}
 a {
  text-decoration:  none;
}
.button::before,
.button::after {
	background: rgba(255, 255, 255, 1.0);
	content: '';
	position: absolute;
}

.button::after {
	height: 70px;
	left: -22%;
	top: 0;
	transform: skew(50deg);
  	transition-duration: 0.3s;
  	transform-origin: top;
	width: 0;
  	z-index: 0;
}
.button:hover:after {
	height: 60px;
	width: 325px;
}
.iconBtn{
	max-height: 85%;
	max-width: 85%;
    z-index: 999;
}
.serv-name{
  z-index:999;
}

    <div class="service-wrapper">
    <div class="services">
        <a href="#"><div class="button">
            <img src="https://png.icons8.com/?id=42205&size=36" class="iconBtn">
            <div class="serv-name">TECHNICAL SUPPORT</div>
        </div></a>
    </div>
    <div class="services">
        <a href="#"><div class="button">
            <img src="https://png.icons8.com/?id=7495&size=36" class="iconBtn"> 
            <div class="serv-name">CUSTOMER SERVICE</div>