[Javascript2] added CSS reset

Javascript2/asset/main.css

@@ -5,8 +5,14 @@ Nicola Clark
 Adapted from https://javascript30.com - Sorting band names without articles
 */
 
-body {
+* {
+  box-sizing: border-box;
+
   margin: 0;
+  padding: 0;
+}
+
+body {
   font-family: sans-serif;
   background: url('https://source.unsplash.com/nDqA4d5NL0k/2000x2000');
   background-size: cover;

Javascript2/index.html

@@ -12,6 +12,7 @@ Changes:
 * [JS] … a lot.
   I tried to complete the challenge before watching the rest of the video (as
   suggested) and I fear that I may have massively overcomplicated the matter.
+* [CSS] added a basic reset
 -->
 <!--
 New elements: