fix: improvements from recordings 10.3.2025 v2

Author: danieldanielecki

README.md

@@ -3079,19 +3079,19 @@ The em unit represents the font size of the element's parent container. It is co
 
 ```css
 .container {
-    font-size: 16px; /* Set base font size to 16 pixels */
+  font-size: 16px; /* Set base font size to 16 pixels */
 }
 
 .text {
-    font-size: 1.5em; /* Set font size to 1.5 times the parent container's font size */
+  font-size: 1.5em; /* Set font size to 1.5 times the parent container's font size */
 }
 ```
 
 [![Edit 077-Em (em)](images/codesandbox.svg)](https://codesandbox.io/p/sandbox/077-em-em-gw6ctx)
 
 [^77]CodeSandbox: Em (em).
 
-[^77]:[CodeSandbox: Em (em)](https://gw6ctx.csb.app/), last access: June 25, 2024.
+[^77]:[CodeSandbox: Em (em)](https://gw6ctx.csb.app/), last access: March 10, 2025.
 
 ##### Benefits and Considerations
 

__presentation-slides/index.html

@@ -1968,11 +1968,11 @@ <h1>Test</h1>
 
 ```css[|2|1,3|6|5,7]
 .container {
-    font-size: 16px; /* Set base font size to 16 pixels */
+  font-size: 16px; /* Set base font size to 16 pixels */
 }
 
 .text {
-    font-size: 1.5em; /* Set font size to 1.5 times the parent container's font size */
+  font-size: 1.5em; /* Set font size to 1.5 times the parent container's font size */
 }
 ```