Subscription input field not changing colour

Site URL: https://onyxhive.com.au

Hello,

EDIT: FIXED IT

In my footer where to enter the email address, the input field "email address" text is black. I want to change this to white, but the code isn't working even though it works for my other input fields on my website. I just want to change it from black to white.

#block-yui_3_17_2_2_1641616579354_14963 
input{
    color: white;
  outline: none;
}

This code DID work but somehow it converted back to black again

Fixed it by using ::placeholder

#block-yui_3_17_2_2_1641616579354_14963 
input::placeholder {
    color: white;
  outline: none;
}