The min attribute defines the minimum value that is acceptable and valid for the input containing the attribute. If the value of the element is less than this, the element fails constraint validation. This value must be less than or equal to the value of the max attribute.
Some input types have a default minimum. If the input has no default minimum and a value is specified for min that can't be converted to a valid number (or no minimum value is set), the input has no minimum value.
For the <meter> element, the min attribute defines the lower numeric bound of the measured range. This must be less than the minimum value (max attribute), if specified. In both cases, if omitted, the value defaults to 1.
Because step defaults to 1, valid values include 7.2, 8.2, 9.2, and so on. The value 8 is not valid. As we included an invalid value, supporting browsers will show the value as invalid.
If not explicitly included, step defaults to 1 for number and range, and 1 unit type (second, week, month, day) for the date/time input types.
Provide instructions to help users understand how to complete the form and use individual form controls. Indicate any required and optional input, data formats, and other relevant information. When using the min attribute, ensure this minimum requirement is understood by the user. Providing instructions within the <label> may be sufficient. If providing instructions outside of labels, which allows more flexible positioning and design, consider using aria-labelledby or aria-describedby.