效果实现源码：
宽度，高度必须确认，且相等
<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><title>Title</title><style>.circlew {width: 45px;height: 45px;border-radius: 50%; /* 将容器设置为圆形 */background-color: #ff9900;display: flex;justify-content: center; /* 居中显示 */align-items: center; /* 居中显示 */}.txt {color: #ffffff;font-size: 26rpx;}</style>
</head>
<body>
<div class="circlew"><span class="txt">租</span></div>
</body>
</html>效果
![[ROS2系列] ORBBEC（奥比中光）AstraPro相机在ROS2进行rtabmap 3D建图](https://img-blog.csdnimg.cn/933f27029fa743439f5389f503e9f7a1.png)
