jsFiddle is the perfect solution; it provides a custom environment (based on user selections) to test (or fiddle with) your JavaScript, HTML, and CSS code right inside your browser. A quick tour ...

Open an HTML ... images that contain text. You may discover a new appealing look that works better than the existing one. Any time you increase an image's dimensions using CSS, the image's quality ...

Then, add images and photos to the page ... As you continue to learn HTML, CSS and JavaScript, embrace a growth mindset. With practice and experimentation, you’ll gain confidence and develop ...