::-webkit-input-placeholder { /* WebKit, Blink, Edge /
color: #222;
}
:-moz-placeholder { / Mozilla Firefox 4 to 18 /
color: #222;
opacity: 1;
}
::-moz-placeholder { / Mozilla Firefox 19+ /
color: #222;
opacity: 1;
}
:-ms-input-placeholder { / Internet Explorer 10-11 /
color: #222;
}
::-ms-input-placeholder { / Microsoft Edge /
color: #222;
}
::placeholder { / Tutti i browsers moderni. */
color: #222;
}