Input field iOS Safari bug — Can't type in any text

input { -webkit-user-select:text;}

this will solve the issue.

Browser specific css rules for text input field

input {
    -webkit-user-select: text; /* Chrome, Opera, Safari */
    -moz-user-select: text; /* Firefox 2+ */
    -ms-user-select: text; /* IE 10+ */
    user-select: text; /* Standard syntax */
}