src/main/resources/static/plugins/element-ui/lib/theme-chalk/avatar.css

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.el-avatar{display:inline-block;-webkit-box-sizing:border-box;box-sizing:border-box;text-align:center;overflow:hidden;color:#fff;background:#C0C4CC;width:40px;height:40px;line-height:40px;font-size:14px}.el-avatar>img{display:block;height:100%;vertical-align:middle}.el-avatar--circle{border-radius:50%}.el-avatar--square{border-radius:4px}.el-avatar--icon{font-size:18px}.el-avatar--large{width:40px;height:40px;line-height:40px}.el-avatar--medium{width:36px;height:36px;line-height:36px}.el-avatar--small{width:28px;height:28px;line-height:28px}