我创建了一些虚拟的面包屑步骤。
第一个面包屑步骤需要在左侧有一个正常的平坦边框，这已完成。
悬停时，我需要显示每个面包屑项目的黑色边框。
但唯一的问题是悬停时，对于第一个面包屑步骤，我没有像预期的那样在左侧得到平坦的边框。
以下是悬停时的预期结果：
这是我的代码：
body {
padding: 0;
margin: 0;
}
.breadcrumbs {
background-color: white;
width: 100%;
padding: 0 1rem;
font-size: 0;
margin: 1rem;
}
.breadcrumbs .breadcrumb-step {
display: inline-block;
width: 12.33%;
height: 5rem;
text-decoration: none;
color: black;
}
.step-title {
display: none;
}
.breadcrumb-step:before {
content: '';
display: block;
transform: skew(30deg);
border: 1px solid lightgrey;
border-bottom: none;
height: 50%;
width: 100%;
}
.breadcrumb-step:after {
content: '';
display: block;
transform: skew(-30deg);
border: 1px solid lightgrey;
border-top: none;
height: 50%;
width: 100%;
}
.breadcrumb-step:hover:before {
border-color: black;
}
.breadcrumb-step:hover:after {
border-color: black;
}
.breadcrumb-step:nth-child(1):before {
transform: none;
border-right: none;
}
.breadcrumb-step:nth-child(1):after {
transform: none;
border-right: none;
}
.breadcrumb-step:nth-child(1):hover:before {
transform: skew(30deg);
border-right: 1px solid black;
}
.breadcrumb-step:nth-child(1):hover:after {
transform: skew(-30deg);
border-right: 1px solid black;
}
/*
.breadcrumb-step:nth-child(1) {
border: 1px solid lightgrey;
}
.breadcrumb-step:nth-child(1):before {
transform: none;
border: none;
}
.breadcrumb-step:nth-child(1):after {
transform: none;
border: none;
}
*/
<div class="breadcrumbs">
<a class="breadcrumb-step" href="#"><span class="step-title">Home</span></a>
<a class="breadcrumb-step" href="#"><span class="step-title">About</span></a>
<a class="breadcrumb-step" href="#"><span class="step-title">Contact Us</span></a>
</div>
您可以调整变换原点，然后隐藏倾斜元素的溢出部分并更改悬停时第一个子元素的左边框：
body {
margin: 0;
}
.breadcrumbs {
background-color: white;
width: 100%;
padding: 0 1rem;
font-size: 0;
margin: 1rem;
}
.breadcrumbs .breadcrumb-step {
display: inline-block;
width: 12.33%;
height: 5rem;
text-decoration: none;
color: black;
}
/*added this*/
.breadcrumbs .breadcrumb-step:first-child {
width: 15.33%;
overflow:hidden;
border-left:1px solid lightgrey;
}
/**/
.step-title {
display: none;
}
.breadcrumb-step:before,
.breadcrumb-step:after {
content: '';
display: block;
height: 50%;
box-sizing:border-box;
width: 100%;
border: 1px solid lightgrey;
}
.breadcrumb-step:before {
transform: skew(30deg);
transform-origin:right bottom; /*added this*/
border-bottom: none;
}
.breadcrumb-step:after {
transform: skew(-30deg);
transform-origin:right top; /*added this*/
border-top: none;
}
/*added this*/
.breadcrumb-step:hover:before,
.breadcrumb-step:hover:after,
.breadcrumbs .breadcrumb-step:first-child:hover{
border-color: black;
}
<div class="breadcrumbs">
<a class="breadcrumb-step" href="#"><span class="step-title">Home</span></a>
<a class="breadcrumb-step" href="#"><span class="step-title">About</span></a>
<a class="breadcrumb-step" href="#"><span class="step-title">Contact Us</span></a>
</div>
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