Dear Khang Le,
1) You need to do that to know what layout are you using. In backend, please go to Template Manager -> open SJ WordNews template -> in 'Layout Settings' tab , please check 'Window Layout', example main-right.xml.
2) Please go to your folder call name '
layouts', not '
css' in your_site/templates/sj_wordnews/
Please open 'layouts' folder, and find layout file, example (main-right.xml) and find the code in there:
<position width="300px" height="" type="feature">@logo</position>
and edit to:
<position width="300px" height="" type="modules">logo</position>
Then create a module with position is 'logo', you can add the plash logo in this module.
Thanks