transform: rotate(45deg);
        }
      }
    </style>
  </head>
  <body>
    <div class="container">
      <!-- 左边半圆环 -->
      <div class="wrapper">
        <div class="leftcircle"></div>
      </div>
      <!-- 右边半圆环 -->
      <div class="wrapper">
        <div class="rightcircle"></div>
      </div>
    </div>
  </body>
</html>
