You’re welcome!
.mc4wp-form .et-mailchimp input[type="email"] {
background-color: white;
color: grey;
margin-bottom: 15px;
}
.mc4wp-form .et-mailchimp input[type="submit"] {
width: 40px;
}
To change selection add the following code in Theme Options > Styling > Custom CSS:
::selection {
background: your_color;
}
Regards