[css-inline] adjust new image sizes

Author: dauwhe

css-inline/Overview.bs

@@ -2544,14 +2544,14 @@ An initial letter does not affect the position of its containing element. For 
 A paragraph with an initial letter may have fewer lines of text than the initial letter occupies. The initial letter acts as if it is a float, and the subsequent para may wrap around it.
 
 <figure>
-<img src="initial-letter-short-para.png" alt="short para with initial letter" width="480"/>
+<img src="initial-letter-short-para.png" alt="short para with initial letter" width="600"/>
 <p class="caption">The red text is a short paragraph with an initial letter. Note the subsequent paragraph wraps around the initial letter as if it were a float.</p>
 </figure>
 
 If the subsequent paragraph also has an initial letter, then that initial letter must clear the float of the previous initial letter.
 
 <figure>
-<img src="initial-letter-short-para-initial.png" alt="short para with initial letter followed by para with initial" width="480"/>
+<img src="initial-letter-short-para-initial.png" alt="short para with initial letter followed by para with initial" width="600"/>
 <p class="caption">The red text is a short paragraph with an initial letter. If the subsequent paragraph also has an initial letter, its initial letter clears as if it was a float, too.</p>
 </figure>
 

css-inline/Overview.html

@@ -2643,14 +2643,14 @@ <h4 class="heading settled heading" data-level=3.7.2 id=short-paragraphs-with-in
 <p>A paragraph with an initial letter may have fewer lines of text than the initial letter occupies. The initial letter acts as if it is a float, and the subsequent para may wrap around it.</p>
 
 <figure>
-<img alt="short para with initial letter" src=initial-letter-short-para.png width=480>
+<img alt="short para with initial letter" src=initial-letter-short-para.png width=600>
 <p class=caption>The red text is a short paragraph with an initial letter. Note the subsequent paragraph wraps around the initial letter as if it were a float.</p>
 </figure>
 
 <p>If the subsequent paragraph also has an initial letter, then that initial letter must clear the float of the previous initial letter.</p>
 
 <figure>
-<img alt="short para with initial letter followed by para with initial" src=initial-letter-short-para-initial.png width=480>
+<img alt="short para with initial letter followed by para with initial" src=initial-letter-short-para-initial.png width=600>
 <p class=caption>The red text is a short paragraph with an initial letter. If the subsequent paragraph also has an initial letter, its initial letter clears as if it was a float, too.</p>
 </figure>