try this for hide autofill style
input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:active,
input:-webkit-autofill:focus {
background-color: #FFFFFF !important;
color: #555 !important;
-webkit-box-shadow: 0 0 0 1000px white inset !important;
-webkit-text-fill-color: #555555 !important;
}