Problem introduction: How to achieve the segmentation effect of the right border changing to a 45-degree curve when clicking a button?

The segmentation effect of the right border changing to a 45-degree curve when clicking the button can be implemented. You can use the clip-path attribute and path function in CSS to implement it. This method can achieve complex shape changes by controlling the path.

Specifically, you can create a structure in html with two tags each accounting for 50% of the width. When a tag is clicked and activated, it is styled by adding an active class. In css, you can use the clip-path attribute to define the shape of the label in the active state.

Here is a specific implementation code example:

 

  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Trained tab button-based on clip-path path function</title>
  <style>
    .wrap {
      background-color: #eee;
      width: 375px;
      margin: 0 auto;
      padding: 10px;
    }

    .tabs {
      display: flex;
      width: 100%;
      overflow: hidden;
      border-radius: 8px 8px 0 0;
      background: linear-gradient(#cdd9fe, #e2e9fd);
    }

    .tab {
      flex: 0 0 50.1%;
      height: 50px;
      cursor: pointer;
      position: relative;
      text-align: center;
      line-height: 50px;
    }

    .tab.active {
      background-color: #fff;
      color: #4185ef;
    }

    .tab.active:before {
      content: &#39;&#39;;
      position: absolute;
      top: 0;
      left: -50px;
      height: 100%;
      width: 50px;
      z-index: 2;
      background-color: #fff;
      clip-path: path(&#39;M 0,50 C 25,50 25,0 50,0 L 50, 50 Z&#39;);
    }

    .tab.active:after {
      content: &#39;&#39;;
      position: absolute;
      top: 0;
      right: -50px;
      height: 100%;
      width: 50px;
      z-index: 2;
      background-color: #fff;
      clip-path: path(&#39;M 0,0 C 25,0 25,50 50,50 L 0, 50 Z&#39;);
    }

    .content-wrap {
      min-height: 200px;
      background-color: #fff;
    }
  </style>
  <script src="https://cdn.bootcdn.net/ajax/libs/alpinejs/3.10.3/cdn.min.js" defer></script>
  <script src="https://unpkg.com/@unocss/runtime"></script>
  <script>
    window.__unocss = {
      rules: [],
      Presets: [],
    }
  </script>


  <div class="wrap" x-data="initData()">
    <div class="tabs">
      <template x-for="index in 2" :key="index">
        <div class="tab" :class="{ 'active': activeIndex == index }" x-text="'Tag' index">
        </div>
      </template>
    </div>
    <div class="content-wrap">
      
    </div>
  </div>

  <script>
    function initData() {
      return {
        activeIndex: 1,
        onTabClick(index) {
          this.activeIndex = index
        }
      }
    }
  </script>

In this example, when the tag is activated, the clip-path attribute defines a 45-degree curve shape through the path function, achieving the change effect of left and right borders. This will enable the effect of clicking the left button to change to a 45-degree curve and clicking the right side reversely.

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