三角形边框的渐变效果

塔拉卡（Tharaka Nilupul Dharmabandu）

需要为边框添加渐变效果。边框是三角形的

.progress-indicator-wrapper {
  margin: 0 10px;
  font-size: 16px;
  color: #2f2f2f;
  background-image: linear-gradient(to bottom, #e7e7e7, #d8d8d8);
}
.progress-indicator {
  display: table;
  width: 100%;
  text-align: center;
  line-height: 20px;
}
.progress-indicator > div {
  display: table-cell;
  margin-top: 0;
  padding: 20px;
  position: relative;
}
.progress-indicator > div.progress-active::before {
  content: " ";
  position: absolute;
  left: 0;
  top: 0;
  border-top: 30px solid transparent;
  border-bottom: 30px solid transparent;
  border-left: 20px solid #e7e7e7;
}
.progress-indicator > div.progress-active::after {
  content: " ";
  position: absolute;
  right: -20px;
  top: 0;
  border-top: 30px solid transparent;
  border-bottom: 30px solid transparent;
  border-left: 20px solid #2980b9;
}
.progress-active {
  color: #fff;
  background-image: linear-gradient(to bottom, #3498db, #2980b9);
}

<div class="progress-indicator-wrapper">
  <div class="progress-indicator">
    <div>
      <span class="progress-txt">Step 1 </span>
    </div>
    <div class="progress-active">
      <span class="progress-txt">Step 2</span>
    </div>
    <div>
      <span class="progress-txt">Step 3</span>
    </div>
    <div>
      <span class="progress-txt">Step 4</span>
    </div>
    <div>
      <span class="progress-txt">Step 5</span>
    </div>
  </div>
</div>

我面临为“左边框”添加渐变而不是纯色的问题。并且需要保持三角形的形状。

要么

还有其他方法可以只使用CSS吗？

塔拉卡（Tharaka Nilupul Dharmabandu）

我已经完成绘制形状并避免边界的操作。最好使用渐变。

解决方案：这是jsfiddle代码

.progress-indicator-wrapper {
  margin: 0 10px;
  font-size: 16px;
  color: #2f2f2f;
   background-image: linear-gradient(to bottom, #e7e7e7, #d8d8d8);
}

.progress-indicator {
    display: table;
    width: 100%;
    text-align: center;
    line-height: 20px;
}

.progress-indicator > div {
    display: table-cell;
    margin-top: 0;
    padding: 10px;
    position: relative;
}

.progress-indicator > .progress-active {
  padding: 20px 20px 20px 30px;
  color: #fff;
   background-image: linear-gradient(to bottom, #3498db, #2980b9);
}
.progress-indicator > .progress-active + div {
  padding-left: 20px;
}
/* Triangle arrow define  */
.progress-active::before, .progress-active::after {
  content: "";
  width: 34px;
  padding-bottom: 30px;
  position: absolute;
  overflow: hidden;
  transform: rotate(90deg);
  z-index: 2;  

  -webkit-transform-origin: 0 0;
  -ms-transform-origin: 0 0;
  transform-origin: 0 0;

  background-image: linear-gradient(45deg, #e7e7e7, #d8d8d8);

  -webkit-transform-origin: 0 100%;
  -ms-transform-origin: 0 100%;
  transform-origin: 0 100%;
  -ms-transform: rotate(45deg);
  -webkit-transform: rotate(45deg);

  transform: rotate(120deg) skewX(-30deg);
}

.progress-active::before {
  top: -30px;
  left: 0px;
}

.progress-active::after {
  top: -30px;
  right: -34px;
   background-image: linear-gradient(45deg, #3498db, #2980b9);
}

<div class="progress-indicator-wrapper">

    <div class="progress-indicator">
        <div>
            <span class="progress-txt">Step 1 </span>
        </div>
        <div class="progress-active">
            <span class="progress-txt">Step 2</span>
        </div>
        <div>
            <span class="progress-txt">Step 3</span>
        </div>
        <div>
            <span class="progress-txt">Step 4</span>
        </div>
        <div>
            <span class="progress-txt">Step 5</span>
        </div>
    </div>

</div>

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