Progress & Meter
Progress
<label>Determinate (65%)</label>
<progress value="65" max="100"></progress>
<label>Indeterminate</label>
<progress></progress>
Meter
<label>Disk usage (optimum)</label>
<meter min="0" max="100" low="25" high="75" optimum="50" value="40"></meter>
<label>Memory usage (sub-optimum)</label>
<meter min="0" max="100" low="25" high="75" optimum="25" value="65"></meter>
<label>CPU usage (critical)</label>
<meter min="0" max="100" low="25" high="75" optimum="25" value="90"></meter>
Output
<form oninput="result.value = parseInt(a.value) + parseInt(b.value)">
<input type="range" id="a" name="a" value="25">
<span>+</span>
<input type="range" id="b" name="b" value="50">
<span>=</span>
<output name="result" for="a b">75</output>
</form>