Contact form 7 custom upload button

gistfile1.txt

// in contact form
 <div class="btn upload-file-btn">
    [file file-967 class:fileuploadfield filetypes:.pdf|.txt|.jpg|.png|.gif|doc|.docx|.mp4|.3gp|.avi|.mov]
    <input type="button" class="uploadbrowse-btn" value="Upload your file*">
    
    <!-- or use button instead -->
    <!-- <button class="uploadbrowse-btn" value="Upload your file*">Upload your file*</button> -->
</div>

//css
.fileuploadfield {
  display:none;
}

//jQuery
$(".uploadbrowse-btn").click(function() {
  $(this).parent().find('.fileuploadfield').click()
});