Remove textarea inner shadow on Mobile Safari (iPhone)
By adding this css style:
appearance: none;
-moz-appearance: none;
-webkit-appearance: none;
As per https://developer.mozilla.org/en-US/docs/Web/CSS/appearance
While adding the CSS style
-webkit-appearance: none;
will work, it gets rid of everything. You may want to try this instead:
box-shadow: none !important;
This way you keep the down-arrow.