HTML <form> acceptAttribute
Example
Specifies that the server only accepts GIF and JPEG files for file upload:
<form action="form_action.html"
accept="image/gif,image/jpeg">
First name: <input type="text" name="fname"><br>
Last name: <input type="text" name="lname"><br>
Your image: <input type="file" name="pic" id="pic"><br>
<input type="submit" value="提交">
</form>
First name: <input type="text" name="fname"><br>
Last name: <input type="text" name="lname"><br>
Your image: <input type="file" name="pic" id="pic"><br>
<input type="submit" value="提交">
</form>
Try it Yourself »
Browser Support
Note:Almost all mainstream browsers do not support the accept attribute.
Definition and Usage
In HTML5, the <form> accept attribute is not supported.
The accept attribute specifies the types of files that the server accepts and that can be submitted through file upload.
Tip:Avoid using this attribute as a validation tool. You should validate file uploads on the server side.
Syntax
<form accept="MIME_type">
Attribute Values
| Value | Description |
|---|---|
| MIME_type | One or more MIME types allowed to be submitted/uploaded. To specify multiple MIME types, separate them with commas. See alsoIANA MIME typesto get the complete list of standard MIME types. |
HTML <form> Tag Other Extensions