diff --git a/src/core/fresh-theme.js b/src/core/fresh-theme.js
index 86944f2..08fcc9b 100644
--- a/src/core/fresh-theme.js
+++ b/src/core/fresh-theme.js
@@ -181,15 +181,26 @@ Definition of the FRESHTheme class.
       return fmt && (fmt.ext === 'css');
     }))
 
-    // For each CSS file, get its corresponding HTML file
+    // For each CSS file, get its corresponding HTML file. It's possible that
+    // a theme can have a CSS file but *no* HTML file, as when a theme author
+    // creates a pure CSS override of an existing theme.
     .forEach(function( cssf ) {
 
       var idx = _.findIndex(fmts, function( fmt ) {
         return fmt && fmt.pre === cssf.pre && fmt.ext === 'html';
       });
       cssf.action = null;
-      fmts[ idx ].css = cssf.data;
-      fmts[ idx ].cssPath = cssf.path;
+      if( idx > -1) {
+        fmts[ idx ].css = cssf.data;
+        fmts[ idx ].cssPath = cssf.path;
+      }
+      else {
+        if( that.inherits ) {
+          // Found a CSS file without an HTML file in a theme that inherits
+          // from another theme. This is the override CSS file.
+          that.overrides = { file: cssf.path, data: cssf.data };
+        }
+      }
     });
 
     // Remove CSS files from the formats array
diff --git a/src/eng/generic-helpers.js b/src/eng/generic-helpers.js
index a9defba..a5b1751 100644
--- a/src/eng/generic-helpers.js
+++ b/src/eng/generic-helpers.js
@@ -215,9 +215,17 @@ Generic template helper definitions for HackMyResume / FluentCV.
     via <style></style> tag.
     */
     styleSheet: function( file, options ) {
-      return ( this.opts.css === 'link') ?
+      var styles = ( this.opts.css === 'link') ?
         '<link href="' + file + '" rel="stylesheet" type="text/css">' :
         '<style>' + this.cssInfo.data + '</style>';
+      if( this.opts.themeObj.inherits &&
+          this.opts.themeObj.inherits.html &&
+          this.format === 'html' ) {
+        styles += (this.opts.css === 'link') ?
+          '<link href="' + this.opts.themeObj.overrides.path + '" rel="stylesheet" type="text/css">' :
+          '<style>' + this.opts.themeObj.overrides.data + '</style>';
+      }
+      return styles;
     },
 
     /**
diff --git a/src/eng/handlebars-generator.js b/src/eng/handlebars-generator.js
index b9895eb..16c7e30 100644
--- a/src/eng/handlebars-generator.js
+++ b/src/eng/handlebars-generator.js
@@ -45,6 +45,7 @@ Definition of the HandlebarsGenerator class.
         RAW: json,
         filt: opts.filters,
         cssInfo: cssInfo,
+        format: format,
         opts: opts,
         headFragment: opts.headFragment || ''
       });