CSS3 步骤菜单全宽响应箭头

亚历克斯·查希尔

我在桌面上创建了一个带有左右箭头的 CSS 步骤。在移动设备上，我希望它看起来像这样：

这是我到目前为止所拥有的：https :
//jsfiddle.net/06u3bm72/

如您所见，我想在每个列表项上创建全宽顶部箭头，以便创建三角形，就像设计一样。有没有办法保持我当前的标记并实现这一目标？

我的代码是：

.breadcrumbs-two {
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumbs-two {
  overflow: hidden;
  width: 100%;
}

.breadcrumbs-two li {
  float: left;
  width: 18.3%;
}

.breadcrumbs-two a {
  text-transform: uppercase;
  float: left;
  text-decoration: none;
  color: #FFF;
  position: relative;
  text-align: center;
  width: 100%;
  height: 80px;
  line-height: 1.3;
  font-size: 15px;
}

.breadcrumbs-two a span {
  display: inline-block;
  max-width: 100%;
  width: 150px;
  margin: auto;
  position: relative;
  top: 20px;
}

.breadcrumbs-two a::before {
  content: "";
  position: absolute;
  top: 50%;
  margin-top: -40px;
  border-width: 40px 0 40px 30px;
  border-style: solid;
  border-color: #ddd #ddd #ddd transparent;
  left: -30px;
}

.breadcrumbs-two a::after {
  content: "";
  position: absolute;
  top: 50%;
  margin-top: -40px;
  border-top: 40px solid transparent;
  border-bottom: 40px solid transparent;
  border-left: 30px solid #ddd;
  right: -30px;
}

.bread1 a {
  background-color: #8ac43c;
}

.bread1 a::before {
  border-color: #8ac43c #8ac43c #8ac43c transparent;
}

.bread1 a::after {
  border-color: transparent #8ac43c transparent #8ac43c;
}

.bread2 a {
  background-color: #69aa4e;
}

.bread2 a::before {
  border-color: #69aa4e #69aa4e #69aa4e transparent;
}

.bread2 a::after {
  border-color: transparent #69aa4e transparent #69aa4e;
}

.bread3 a {
  background-color: #448e60;
}

.bread3 a::before {
  border-color: #448e60 #448e60 #448e60 transparent;
}

.bread3 a::after {
  border-color: transparent #448e60 transparent #448e60;
}

.bread4 a {
  background-color: #1f7171;
}

.bread4 a::before {
  border-color: #1f7171 #1f7171 #1f7171 transparent;
}

.bread4 a::after {
  border-color: transparent #1f7171 transparent #1f7171;
}

.bread5 a {
  background-color: #005581;
}

.bread5 a::before {
  border-color: #005581 #005581 #005581 transparent;
}

.bread5 a::after {
  border-color: transparent #005581 transparent #005581;
}

@media screen and (max-width: 991px) {
  .breadcrumbs-two li {
    float: none;
    width: 100%;
  }
  .breadcrumbs-two a {
    width: 100%;
  }
  li.bread1 {
    margin-left: 0;
  }
  .breadcrumbs-two a {
    padding-top: 0;
    background-clip: content-box;
    overflow: hidden;
  }
  .breadcrumbs-two a::before {
    content: "";
    position: absolute;
    top: 50%;
    margin-top: -40px;
    border-width: 40px 0 40px 20px;
    border-width: 40px 0px 0px 40px;
    border-style: solid;
    left: 50%;
    width: 100%;
    left: 0;
    border: 0;
    z-index: 10;
    height: 10px;
    top: 0;
    margin: 0;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 20px auto 0 auto;
    border-color: #007bff transparent transparent transparent;
    display: none;
  }
  .breadcrumbs-two a::after {
    content: "";
    position: absolute;
    top: 50%;
    margin-top: -40px;
    right: -20px;
    display: none;
  }
}

<ul class="breadcrumbs-two">
  <li class="bread1"><a><span><strong>Discovery</strong> and sales audit</span></a></li>
  <li class="bread2"><a><span>Priorities and <strong>Action Plan</strong></span></a></li>
  <li class="bread3"><a><span>Workshops and <strong>Collaborations</strong></span></a></li>
  <li class="bread4"><a><span><strong>Execute</strong> and <strong>Implement</strong></span></a></li>
  <li class="bread5"><a><span><strong>Results</strong> and <strong>Adoption</strong></span></a></li>
</ul>

卡洛斯·马丁内斯

您可以使用前后伪元素和透明颜色的边框来实现。

这是一个如何做的例子，这可以更好地优化，但我认为它可以作为指导。

https://codepen.io/itscarlosisaac/pen/MOQOZO

.breadcrumbs-two{
      margin: 0;
      padding: 0;
      list-style: none;
    }
    .breadcrumbs-two{
      overflow: hidden;
      width: 100%;
    }
.breadcrumbs-two li{
      float: left;
      width: 18.3%;
    }
    .breadcrumbs-two a{
      text-transform: uppercase;
      float: left;
      text-decoration: none;
      color: #FFF;
      position: relative;
      text-align: center;
      width: 100%;
      height: 80px;
      line-height: 1.3;
    font-size: 15px;
    }   
    .breadcrumbs-two a span {
        display: inline-block;
        max-width: 100%;
        width: 150px;
        margin: auto;
        position: relative;
        top: 20px;
    }
    .breadcrumbs-two a::before{
      content: "";
      position: absolute;
      top: 50%; 
      margin-top: -40px;   
      border-width: 40px 0 40px 30px;
      border-style: solid;
      border-color: #ddd #ddd #ddd transparent;
      left: -30px;
    }
    .breadcrumbs-two a::after{
      content: "";
      position: absolute;
      top: 50%; 
      margin-top: -40px;   
      border-top: 40px solid transparent;
      border-bottom: 40px solid transparent;
      border-left: 30px solid #ddd;
      right: -30px;
    }
    .bread1 a {
        background-color: #8ac43c;
    }
    .bread1 a::before {
        border-color: #8ac43c #8ac43c #8ac43c transparent;
    }
    .bread1 a::after {
        border-color: transparent #8ac43c transparent #8ac43c;
    }
    .bread2 a {
        background-color: #69aa4e;
    }
    .bread2 a::before {
        border-color: #69aa4e #69aa4e #69aa4e transparent;
    }
    .bread2 a::after {
        border-color: transparent #69aa4e transparent #69aa4e;
    }
    .bread3 a {
        background-color: #448e60;
    }
    .bread3 a::before {
        border-color: #448e60 #448e60 #448e60 transparent;
    }
    .bread3 a::after {
        border-color: transparent #448e60 transparent #448e60;
    }
    .bread4 a {
        background-color: #1f7171;
    }
    .bread4 a::before {
        border-color: #1f7171 #1f7171 #1f7171 transparent;
    }
    .bread4 a::after {
        border-color: transparent #1f7171 transparent #1f7171;
    }
    .bread5 a {
        background-color: #005581;
    }
    .bread5 a::before {
        border-color: #005581 #005581 #005581 transparent;
    }
    .bread5 a::after {
        border-color: transparent #005581 transparent #005581;
    }

    @media screen and (max-width: 991px) {
  .breadcrumbs-two{
    overflow-x:hidden;
    overflow-y:visible;
    padding-bottom:40px;
  }
  .breadcrumbs-two a span{ top:45px; }
        .breadcrumbs-two li {
            float: none;
            width: 100vw;
    height: 80px;
    position:relative;
    display:block;
    overflow:visible;
        }
  .breadcrumbs-two li:first-child:before{
    content:'';
    display:block;
    width: 100vw;
    height:30px;
    position:absolute;
    top:0;
    left:0;
    right:0;
    margin:auto;
    border-top:30px solid white;
    border-left:50vw solid transparent;
    border-right:50vw solid transparent;
    box-sizing:border-box;
    z-index:1;
  }
  .breadcrumbs-two li:after{
    content:'';
    display:block;
    width: 100vw;
    height:30px;
    position:absolute;
    bottom:-30px;
    left:0;
    right:0;
    margin:auto;
    border-left:50vw solid transparent;
    border-right:50vw solid transparent;
    box-sizing:border-box;
  }
        .breadcrumbs-two a {
            width: 100%;    
        }
        li.bread1 {
    z-index:10;
        }
        li.bread2 {
    z-index:9;
        }
        li.bread3 {
    z-index:8;
        }
        li.bread4 {
    z-index:7;
        }
        li.bread5 {
    z-index:6;
        }
  li.bread1:after{
    border-top:30px solid #8ac43c;
  }
  li.bread2:after{
    border-top:30px solid #69aa4e;
  }
  li.bread3:after{
    border-top:30px solid #448e60;
  }
  li.bread4:after{
    border-top:30px solid #1f7171;
  }
  li.bread5:after{
    border-top:30px solid #005581;
  }

    }

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