How to remove the textbox border for just one input (not the whole form)?

I don't want to change the look of the whole form via:

.form-textbox, .form-textarea, .form-dropdown {

    border: none!important;

}

I just want it for one input i.e. #input_238

Thoughts?

Thank you.

If you want to remove the text box border for the specific text box field using CSS (ex. #input_238), inject CSS code like this way:

#input_238{

border: none !important;

}

Let us know if you need more help.

Works perfectly. Just needed to add it above the global parameters. Thanks!