diff --git a/src/book.js b/src/book.js
index 68cf047..c081424 100644
--- a/src/book.js
+++ b/src/book.js
@@ -98,7 +98,7 @@ Book.prototype.open = function(_url, options){
   if (window && window.location && uri) {
     absoluteUri = uri.absoluteTo(window.location.href);
     this.url = absoluteUri.toString();
-  } if (window && window.location) {
+  } else if (window && window.location) {
     this.url = window.location.href;
   } else {
     this.url = _url;
diff --git a/src/contents.js b/src/contents.js
index 84c0342..2689cbf 100644
--- a/src/contents.js
+++ b/src/contents.js
@@ -600,6 +600,7 @@ Contents.prototype.columns = function(width, height, columnWidth, gap){
   this.css("overflowY", "hidden");
   this.css("margin", "0");
   this.css("boxSizing", "border-box");
+  this.css("maxWidth", "inherit");
 
   this.css(COLUMN_AXIS, "horizontal");
   this.css(COLUMN_FILL, "auto");