prevent page break in code blocks + force wrap in pre tags (because you can't scroll...)

src/renderer/html_handlebars/hbs_renderer.rs

@@ -137,6 +137,7 @@ impl Renderer for HtmlHandlebars {
         let rendered = try!(handlebars.render("index", &data));
         let mut file = try!(utils::create_file(&book.get_dest().join("print").with_extension("html")));
         try!(file.write_all(&rendered.into_bytes()));
+        output!("[*] Creating print.html ✓");
 
         // Copy static files (js, css, images, ...)
 

src/theme/book.css

@@ -296,4 +296,13 @@ html, body {
         page-break-after: avoid;
         /*break-after: avoid;*/
     }
+
+    pre, code {
+        page-break-inside: avoid;
+        white-space: pre-wrap;       /* CSS 3 */
+        white-space: -moz-pre-wrap;  /* Mozilla, since 1999 */
+        white-space: -pre-wrap;      /* Opera 4-6 */
+        white-space: -o-pre-wrap;    /* Opera 7 */
+        word-wrap: break-word;       /* Internet Explorer 5.5+ */
+    }
 }