---- wp-content
   ----- themes
      ----- PlatformPro_v1.3.0
           ----- style.css
       ----- PlatformProChildTheme
            ----- style.css

/*
Theme Name:     PChild
Description:    PChild
Author:         John Smith
Template:       PlatformPro_v1.3.0
*/

@import url("../PlatformPro_v1.3.0/style.css");