Specify that the server accepts only gif and jpeg files in the file upload:
Note: The accept attribute is not supported in any of the major browsers.
The <form> accept attribute is not supported in HTML5.
The accept attribute specifies the types of files that the server accepts (that can be submitted through a file upload).
Tip: Do not use this attribute as a validation tool. File uploads should be validated on the server.
|MIME_type||One or more MIME types that can be submitted/uploaded. To
specify more than one MIME type, separate the types with a comma.
Look at IANA MIME types for a complete list of standard MIME types.
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