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Input attributes include: accept, align, alt, autocomplete, autofocus, checked, disabled, form, width, value, type, src, size, readonly, maxlength, etc.
The operating environment of this tutorial: Windows 7 system, HTML5 version, Dell G3 computer.
HTML tag
tag is used to collect user information.
According to different type attribute values, the input field has many forms. Input fields can be text fields, checkboxes, masked text controls, radio buttons, buttons, etc.
Label attributes
Value | Description | |
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mime_type | Specifies the type of file submitted via file upload.||
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Deprecated. Specifies the alignment of image input. | |
text | Define the alternative text for the image input. | |
| Specifies whether to use the input field autocomplete feature. ||
autofocus | Specifies whether the input field gets focus when the page loads. (Not applicable to type="hidden") | |
checked | Specifies that this input element is the first time Should be selected when loading. | |
disabled | Disables this element when the input element loads. | |
formname | Specifies one or more forms to which the input field belongs.||
URL | Override the action attribute of the form. (Applies to type="submit" and type="image") | |
See note | Override the enctype attribute of the form. (Applies to type="submit" and type="image") | |
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Override the method attribute of the form. (Applies to type="submit" and type="image") | |
formnovalidate | Override the novalidate attribute of the form. If this attribute is used, validation will not be performed when submitting the form. | |
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Override the form's target attribute. (Applies to type="submit" and type="image") | |
| Define the height of the input field. (Applies to type="image") ||
datalist-id | refers to a predefined containing input field datalist of options.||
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Specifies the maximum value of the input field. Please use it with the "min" attribute to create a range of legal values. | |
number | Specifies the maximum length of characters in the input field. | |
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Specifies the minimum value of the input field. Please use it with the "max" attribute to create a range of legal values. | |
multiple | If this attribute is used, more than one value is allowed. | |
field_name | Define the name of the input element. | |
regexp_pattern | Specifies the pattern or format of the value of the input field. For example, pattern="[0-9]" means that the input value must be a number between 0 and 9. | |
placeholder | text | Specifies prompts to help the user fill in the input field. |
readonly | readonly | Specifies that the input field is read-only. |
required | required | Indicates that the value of the input field is required. |
size | number_of_char | Defines the width of the input field. |
src | URL | Defines the URL of the image displayed as a submit button. |
step | number | Specifies the legal digit interval of input characters. |
type |
|
Specify the type of input element. |
value | value | Specifies the value of the input element. |
width |
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Define the width of the input field. (Applicable to type="image") |
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