你的浏览器完全支持 Progress & Meter
Progress & Meter :
Method of indicating a progress state (progress element) or the current level of a gauge (meter element).
Progress & Meter demo:
<progress>
The progress element (spec: 4.10.16) represents the completion progress of a task and can be both indeterminate as determinate.
<meter>
Displaying a scalar measurement within a known range, like hard drive usage, can be done using the meter element (spec: 4.10.17)