css 剪切属性clip-path

实现效果如下：

<!DOCTYPE html>
<html>
  <head>
    <style>
      .clipped {
        width: 200px;
        height: 200px;
        background-color: #3498db;
      clip-path: polygon(0% 0%, 100% 0%, 100% 100%, 30% 100%);
      }
    </style>
  </head>
  <body>
    <div class="clipped"></div>
  </body>
</html>

效果如下：

    width: 171px;
    height: 171px;
    background: linear-gradient(90deg, rgba(0, 68, 145, 0.6) 0%) !important;
    background-color: #3498db;
    clip-path: polygon(20% 0%, 100% 0%, 100% 100%, 0% 100%, 0% 20%);