minor fixes

1-js/02-first-steps/01-hello-world/article.md

@@ -73,7 +73,7 @@ Script files are attached to HTML with the `src` attribute:
 <script src="/path/to/script.js"></script>
 ```
 
-Here, `/path/to/script.js` is an absolute path to the script from the site root. One can also provide a relative path from the current page. For instance, `src="script.js"` would mean a file `"script.js"` in the current folder.
+Here, `/path/to/script.js` is an absolute path to the script from the site root. One can also provide a relative path from the current page. For instance, `src="script.js"`, just like `src="./script.js"`, would mean a file `"script.js"` in the current folder.
 
 We can give a full URL as well. For instance:
 

1-js/11-async/02-promise-basics/03-animate-circle-promise/solution.view/index.html

@@ -10,7 +10,7 @@
       text-align: center;
     }
     .circle {
-      transition-property: width, height, margin-left, margin-top;
+      transition-property: width, height;
       transition-duration: 2s;
       position: fixed;
       transform: translateX(-50%) translateY(-50%);