Need alternative for form.control css

Hi experts, I have a requirement where I have a registration form. I have to design that form in such a way that the text fields appear red and not the default color white. What I did: change the background color in css file to red for 'form-control' css class. This makes change to all other forms in my application but I do not need that. I just want to change the color of text field of my registration form only. Here is the screenshot  of my form:
1 answers


1- add container around your inputs.

2- add custom class to the container

3- change your code to something like that

.login-inputs {
  .form-group {
    // your css design 

Contianer .png