HarmonyOS span中如何设置圆角

Text() { 
 Span(this.TIPS_PREFIX) 
 ContainerSpan() { 
  Span(this.model.getHour(this.remainSeconds.getObj())) 
   .padding(2) 
 }.textBackgroundStyle({ radius: 3, color: Color.White }) 
 
 Span(':') 
 
 Span(this.model.getMinute(this.remainSeconds.getObj())) 
  .border({ color: $r("app.color.FFFFD5C9_FF5B3228"), radius: 3 }) 
  .padding(2) 
 Span(':') 
 Span(this.model.getSecond(this.remainSeconds.getObj())) 
  .border({ color: $r("app.color.FFFFD5C9_FF5B3228"), radius: 3 }) 
  .padding(2) 
 Span(this.TIPS_SUFFIX) 
} 
.fontSize(12) 
.fontColor($r("app.color.FFFF6133")) 
.maxLines(1) 
.textOverflow({ overflow: TextOverflow.Ellipsis }) 
.layoutWeight(1)
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