这是我的傻瓜： plnkr.co
.breadcrumb li a.half-transparent {
background: grey;
opacity: 0.5;
}
在此处应用不透明度会在2级和3级之间产生较暗的区域。
如何将这个较暗的区域带到它周围的相同颜色？
答案 0 :(得分：1)
请参阅此片段，希望有所帮助
.breadcrumb {
list-style: none;
overflow: hidden;
font: 18px Helvetica, Arial, Sans-Serif;
margin: 40px;
padding: 0;
}
.breadcrumb li {
float: left;
}
.breadcrumb li a {
color: white;
text-decoration: none;
padding: 10px 0 10px 55px;
background: brown; /* fallback color */
background: hsla(34,85%,35%,1);
position: relative;
display: block;
float: left;
}
.breadcrumb li a:after {
content: " ";
display: block;
width: 0;
height: 0;
border-top: 50px solid transparent; /* Go big on the size, and let overflow hide */
border-bottom: 50px solid transparent;
border-left: 30px solid hsla(34,85%,35%,1);
position: absolute;
top: 50%;
margin-top: -50px;
left: 100%;
z-index: 2;
}
.breadcrumb li a:before {
content: " ";
display: block;
width: 0;
height: 0;
border-top: 50px solid transparent; /* Go big on the size, and let overflow hide */
border-bottom: 50px solid transparent;
border-left: 30px solid white;
position: absolute;
top: 50%;
margin-top: -50px;
margin-left: 1px;
left: 100%;
z-index: 1;
}
.breadcrumb li:first-child a {
padding-left: 10px;
}
.breadcrumb li:nth-child(2) a { background: hsla(34,85%,45%,1); }
.breadcrumb li:nth-child(2) a:after { border-left-color: hsla(34,85%,45%,1); }
.breadcrumb li:nth-child(3) a { background: hsla(34,85%,55%,1); }
.breadcrumb li:nth-child(3) a:after { border-left-color: hsla(34,85%,55%,1); }
.breadcrumb li:nth-child(4) a { background: hsla(34,85%,65%,1); }
.breadcrumb li:nth-child(4) a:after { border-left-color: hsla(34,85%,65%,1); }
.breadcrumb li:nth-child(5) a { background: hsla(34,85%,75%,1); }
.breadcrumb li:nth-child(5) a:after { border-left-color: hsla(34,85%,75%,1); }
.breadcrumb li:last-child a {
background: transparent !important;
color: black;
pointer-events: none;
cursor: default;
}
.breadcrumb li:last-child a:after { border: 0; }
.breadcrumb li a:hover { background: hsla(34,85%,25%,1); }
.breadcrumb li a:hover:after { border-left-color: hsla(34,85%,25%,1) !important; }
.steps {
margin: 40px;
padding: 0;
overflow: hidden;
}
.steps a {
color: white;
text-decoration: none;
}
.steps em {
display: block;
font-size: 1.1em;
font-weight: bold;
}
.steps li {
float: left;
margin-left: 0;
width: 150px; /* 100 / number of steps */
height: 70px; /* total height */
list-style-type: none;
padding: 5px 5px 5px 30px; /* padding around text, last should include arrow width */
border-right: 3px solid white; /* width: gap between arrows, color: background of document */
position: relative;
}
/* remove extra padding on the first object since it doesn't have an arrow to the left */
.steps li:first-child {
padding-left: 5px;
}
/* white arrow to the left to "erase" background (starting from the 2nd object) */
.steps li:nth-child(n+2)::before {
position: absolute;
top:0;
left:0;
display: block;
border-left: 25px solid white; /* width: arrow width, color: background of document */
border-top: 40px solid transparent; /* width: half height */
border-bottom: 40px solid transparent; /* width: half height */
width: 0;
height: 0;
content: " ";
}
/* colored arrow to the right */
.steps li::after {
z-index: 1; /* need to bring this above the next item */
position: absolute;
top: 0;
right: -25px; /* arrow width (negated) */
display: block;
border-left: 25px solid #7c8437; /* width: arrow width */
border-top: 40px solid transparent; /* width: half height */
border-bottom: 40px solid transparent; /* width: half height */
width:0;
height:0;
content: " ";
}
/* Setup colors (both the background and the arrow) */
/* Completed */
.steps li { background-color: #7C8437; }
.steps li::after { border-left-color: #7c8437; }
/* Current */
.steps li.current { background-color: #C36615; }
.steps li.current::after { border-left-color: #C36615; }
/* Following */
.steps li.current ~ li { background-color: #EBEBEB; }
.steps li.current ~ li::after { border-left-color: #EBEBEB; }
/* Hover for completed and current */
.steps li:hover {background-color: #696}
.steps li:hover::after {border-left-color: #696}
.arrows { white-space: nowrap; }
.arrows li {
display: inline-block;
line-height: 26px;
margin: 0 9px 0 -10px;
padding: 0 20px;
position: relative;
}
.arrows li::before,
.arrows li::after {
border-right: 1px solid #666666;
content: '';
display: block;
height: 50%;
position: absolute;
left: 0;
right: 0;
top: 0;
z-index: -1;
transform: skewX(45deg);
}
.arrows li::after {
bottom: 0;
top: auto;
transform: skewX(-45deg);
}
.arrows li:last-of-type::before,
.arrows li:last-of-type::after {
display: none;
}
.arrows li a {
font: bold 24px Sans-Serif;
letter-spacing: -1px;
text-decoration: none;
}
.arrows li:nth-of-type(1) a { color: hsl(0, 0%, 70%); }
.arrows li:nth-of-type(2) a { color: hsl(0, 0%, 65%); }
.arrows li:nth-of-type(3) a { color: hsl(0, 0%, 50%); }
.arrows li:nth-of-type(4) a { color: hsl(0, 0%, 45%); } <ul class="breadcrumb">
<li><a href="#">Home</a></li>
<li><a href="#">Vehicles</a></li>
<li><a href="#">Vans</a></li>
<li><a href="#">Camper Vans</a></li>
<li><a href="#">1989 VW Westfalia Vanagon</a></li>
</ul>
<ul class="steps steps-5">
<li><a href="#" title=""><em>Step 1: XXXXXXXX</em><span>Et nequ a quam turpis duisi</span></a></li>
<li><a href="#" title=""><em>Step 2: XXXXXXXX</em><span>Et nequ a quam turpis duisi</span></a></li>
<li class="current"><a href="#" title=""><em>Step 3: XXXXXXXX</em><span>Et nequ a quam turpis duisi</span></a></li>
<li><a href="#" title=""><em>Step 4: XXXXXXXX</em><span>Et nequ a quam turpis duisi</span></a></li>
<li><a href="#" title=""><em>Step 5: XXXXXXXX</em><span>Et nequ a quam turpis duisi</span></a></li>
</ul>
<ol class="arrows">
<li><a href="#">Home</a></li>
<li><a href="#">About</a></li>
<li><a href="#">Clients</a></li>
<li><a href="#">Contact Us</a></li>
</ol>
答案 1 :(得分：0)
一种解决方案是不要在level2和level3元素上添加不透明度。
.breadcrumb li a.half-transparent {
background: grey;
}