media query iDevice not working

If media queries on iPhone or iPad not working you have to "enable" it in html.

<meta name=name="viewportviewport" content=" content="width=device-width, initial-scale=1, shrink-to-fit=yes user-scalable=no"no">

/* iPad portait */
@media (max-width:width: 768px)768px) {
body {
font-size:size: 3vmin;3vmin;
}
}

/* iPhone landscape only */
@media (max-width:width: 568px)568px) {
body {
font-size:size: 4vmin;4vmin;
}
}

/* iPhone portait only */
@media (max-width:width: 320px)320px) {
body {
font-size:size: 4vmin;4vmin;
}
}