Checkbox and text boxes are not visible on my form

I created a form with multiple choice and text boxes and when anyone goes to fill out the text options don't show them typing or the boxes to select

The issue seems to be the color of the border is mixing up with the form background making the checkboxes not displayed on the form. 

Please inject the following CSS code to your code in order to display the checkboxes on the form.

.form-textbox, .form-textarea, .form-checkbox-item:not(#foo) label:before {

    border: 1px solid #000000;

}

Please see the screenshot below to check how the fields are displayed after injecting the CSS code to the form.

Hope this information helps!