<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
</head>
<body>
<form action="/form/submit" method="post">
<input type=number step=1 /> Step 1 (default)
<br />
<input type=number step=0.01 /> Step 0.01
<br />
<input type=number step=any /> Step any
<br />
<input type=range step=20 /> Step 20
<br />
<input type=datetime-local step=60 /> Step 60 (default)
<br />
<input type=datetime-local step=1 /> Step 1
<br />
<input type=datetime-local step=any /> Step any
<br />
<input type=datetime-local step=0.001 /> Step 0.001
<br />
<input type=datetime-local step=3600 /> Step 3600 (1 hour)
<br />
<input type=datetime-local step=86400 /> Step 86400 (1 day)
<br />
<input type=datetime-local step=70 /> Step 70 (1 min, 10 sec)
<br />
</form>
</body>
</html>