I can’t find this location. I go to themes and there are three of them. They are large pictures showing information about the themes installed.
I can change basic display items like colors (for some of the items) and background image, etc., but I wanted to change the display of things requiring editing of the css/php files.
I can find the editor, selected the styles.css file and I’ve made changes on the theme that I selected. I’ve saved this in a word document in the event the updates change what I’ve done.
I can save this with the same name but I can’t change the name.
I intended to save it with a new name but couldn’t. Then I was going to change the name from within the styles.css and I couldn’t. I wouldn’t know what to expect either.
I was trying to create a Child Theme.
How to Create a Child Theme
Child Theme directory structure
Create a directory in your themes directory to hold the child theme. The theme directory is wp-content/themes. You should name the directory without any space as part of the name, and it is common practice to use the name of the parent theme folder with “-child” appended to it. For example, if you are making a child of the twentyfourteen theme, your folder name would be twentyfourteen-child.
This isn't straight forward.