Why decreases the font when connecting the feedback form?

Hello! Want to connect feedback form. Insert code:
the <script>
function AjaxFormRequest(result_id,formMain,url) {
jQuery.ajax({
 url: url,
 type: "POST",
 dataType: "html",
 data: jQuery("#"+formMain).serialize(),
 success: function(response) {
 document.getElementById(result_id).innerHTML = response;
},
 error: function(response) {
 document.getElementById(result_id).innerHTML = "an error Occurred when submitting the form. Try again";
}
});
}
</script>

between the head and flies everywhere the font size
July 2nd 19 at 18:21
0 answer

Find more questions by tags BootstrapjQueryCSSHTML