jQuery why some of my icons start looking incorrect

Question

I use jQuery mobile on my app, Everything was ok but I just noticed that these two items below does not look correct anymore.

First one is a selection and there use

Answer 1

Mayu Mayooresan answer is correct for using CDN-Hosted jQuery-Mobile.

If you want to Host it locally, download jQuery Mobile, extract the files to folder /js/. The structure should look like this:

HTML files, directly in root folder

webapp/Index.html

Scripts under root/JS folder

webapp/js/jquery.mobile-1.3.0.min.css

webapp/js/jquery-1.8.2.min.js

webapp/js/jquery.mobile-1.3.0.min.js

Images under root/JS/images/ folder

webapp/js/images/ajax-loader.gif

webapp/js/images/icons-18-black.png

webapp/js/images/icons-36-black.png

webapp/js/images/icons-18-white.png

webapp/js/images/icons-36-white.png

In your HTML file: