I have challenge I’m not able to replicate the change in a ruby on rails project so that the backaground-color changes globally and not only locally how should I proceed?

background-origin:border-box;-webkit-user-select:none;-moz-user-select:none;user-select:none;flex-shrink:0;height:1rem;width:1rem;color:#2563eb;background-color:#333;border-color:#6b7280;border-width:1px;–tw-shadow:

Where are you putting this code?