Make docs' content responsively wider (#2644)

* Make docs' content responsively wider

* Keep navigation static

* Remove unneeded class

www/themes/htmx-theme/static/css/site.css

@@ -336,7 +336,37 @@ a[href]:hover, .btn:hover {
 }
 
 .c.wide-content {
- max-width: 50em;
+ width: 100%
+}
+
+@media (min-width: 640px){
+ .c.wide-content {
+ max-width: 640px
+ }
+}
+
+@media (min-width: 768px){
+ .c.wide-content {
+ max-width: 768px
+ }
+}
+
+@media (min-width: 1024px){
+ .c.wide-content {
+ max-width: 1024px
+ }
+}
+
+@media (min-width: 1280px){
+ .c.wide-content {
+ max-width: 1280px
+ }
+}
+
+@media (min-width: 1536px){
+ .c.wide-content {
+ max-width: 1536px
+ }
 }
 
 .btn.primary {