fix picture width

Author: gaultier

tip_of_the_day_4.html

@@ -214,7 +214,7 @@ <h1>Tip of the day #4: Type annotations on Rust match patterns</h1>
    |                            ^^^^^^^^ expected `bool`, found `TryFromSliceError`
 </code></pre>
 <p>So...it <em>does</em> actually know the type of <code>err</code>... You naughty compiler, playing games with me! It reminds me of this picture:</p>
-<p><img style="height:50rem" src="coffee_or_tea.png" alt="Coffee or tea?">Coffee or tea?</p>
+<p><img style="max-width: 50%; margin: 0 auto; display: block" src="coffee_or_tea.png" alt="Coffee or tea?">Coffee or tea?</p>
 <p><a href="/blog"> ⏴ Back to all articles</a></p>
 
 <blockquote id="donate">

tip_of_the_day_4.md

@@ -190,4 +190,4 @@ error[E0271]: type mismatch resolving `<[u8; 33] as TryFrom<&[u8]>>::Error == bo
 
 So...it *does* actually know the type of `err`... You naughty compiler, playing games with me! It reminds me of this picture:
 
-<img style="height:50rem" src="coffee_or_tea.png" alt="Coffee or tea?">Coffee or tea?
+<img style="max-width: 50%; margin: 0 auto; display: block" src="coffee_or_tea.png" alt="Coffee or tea?">Coffee or tea?