We can use the -webkit-autofill pseudo-selector to target those fields and style them as we see fit. The default styling only affects the background color, but most other properties apply here, such as border and font-size. We can even change the color of the text using -webkit-text-fill-color which is included in the snippet below.

/* Change Autocomplete styles in Chrome*/

input:-webkit-autofill,
input:-webkit-autofill:hover, 
input:-webkit-autofill:focus,
textarea:-webkit-autofill,
textarea:-webkit-autofill:hover,
textarea:-webkit-autofill:focus,
select:-webkit-autofill,
select:-webkit-autofill:hover,
select:-webkit-autofill:focus {
  border: 1px solid green;
  -webkit-text-fill-color: green;
  -webkit-box-shadow: 0 0 0px 1000px #000 inset;
  transition: background-color 5000s ease-in-out 0s;
}

We can use the -webkit-autofill pseudo-selector to target those fields and style them as we see fit. The default styling only affects the background color, but most other properties apply here, such as border and font-size. We can even change the color of the text using -webkit-text-fill-color which is included in the snippet below.

/* Change Autocomplete styles in Chrome*/
input:-webkit-autofill,
input:-webkit-autofill:hover, 
input:-webkit-autofill:focus,
textarea:-webkit-autofill,
textarea:-webkit-autofill:hover,
textarea:-webkit-autofill:focus,
select:-webkit-autofill,
select:-webkit-autofill:hover,
select:-webkit-autofill:focus {
    border: 1px solid green;
    -webkit-text-fill-color: green;
    -webkit-box-shadow: 0 0 0px 1000px #000 inset;
    transition: background-color 5000s ease-in-out 0s;
}