diff --git a/.gitignore b/.gitignore
index 340fd84abaa2cb02e94046d4011cba5457f2b900..47a456944491a9e2473bcaeb1800cc52b08d5f4c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,7 @@
+README.html
+LAYOUT.html
+FAQ.html
+DESIGN.html
 *~
 *.pyc
 _site
-README.html
diff --git a/Makefile b/Makefile
index 8a4c8144896824f5fe744b391e40805164d331b3..61fcfb94a710a24721580f4b08e4a44656c7eb5b 100644
--- a/Makefile
+++ b/Makefile
@@ -3,12 +3,17 @@ SRC_RMD = $(wildcard ??-*.Rmd)
 DST_RMD = $(patsubst %.Rmd,%.md,$(SRC_RMD))
 
 # All Markdown files (hand-written and generated).
-SRC_MD = $(wildcard *.md) $(DST_RMD)
+ALL_MD = $(wildcard *.md) $(DST_RMD)
+EXCLUDE_MD = README.md LAYOUT.md FAQ.md DESIGN.md
+SRC_MD = $(filter-out $(EXCLUDE_MD),$(ALL_MD))
 DST_HTML = $(patsubst %.md,%.html,$(SRC_MD))
 
 # All outputs.
 DST_ALL = $(DST_HTML)
 
+# Pandoc filters.
+FILTERS = $(wildcard tools/filters/*.py)
+
 # Inclusions.
 INCLUDES = \
 	-Vheader="$$(cat _includes/header.html)" \
@@ -32,7 +37,7 @@ motivation.html : motivation.md _layouts/slides.html
 	-o $@ $<
 
 # Pattern to build a generic page.
-%.html : %.md _layouts/page.html
+%.html : %.md _layouts/page.html $(FILTERS)
 	pandoc -s -t html \
 	--template=_layouts/page \
 	--filter=tools/filters/blockquote2div.py \
@@ -63,7 +68,3 @@ settings :
 ## clean    : Clean up temporary and intermediate files.
 clean :
 	@rm -rf $$(find . -name '*~' -print)
-
-# very-clean : Remove generated HTML.
-very-clean :
-	@rm -f $(DST_MD)
diff --git a/tools/filters/blockquote2div.py b/tools/filters/blockquote2div.py
index c583e83a49845e5687469455971f782aac380fb1..844fc11113be4403825b540d1f85416be9fead50 100755
--- a/tools/filters/blockquote2div.py
+++ b/tools/filters/blockquote2div.py
@@ -51,15 +51,6 @@ import pandocfilters as pf
 # trigger the blockquote to be converted to a div.
 SPECIAL_CLASSES = ['callout', 'challenge', 'prereq', 'objectives']
 
-# These are titles of blockquotes that will cause the blockquote to
-# be converted into a div. They are 'title': 'class' pairs, where the
-# 'title' will create a blockquote with the corresponding 'class'.
-SPECIAL_TITLES = {'prerequisites': 'prereq',
-                  'learning objectives': 'objectives',
-                  'objectives': 'objectives',
-                  'challenge': 'challenge',
-                  'callout': 'callout'}
-
 
 def find_header(blockquote):
     """Find attributes in a blockquote if they are defined on a
@@ -104,9 +95,7 @@ def blockquote2div(key, value, format, meta):
 
         id, classes, kvs = attr
 
-        lowercase_title = pf.stringify(inlines).lower()
-        if lowercase_title in SPECIAL_TITLES:
-            classes.append(SPECIAL_TITLES[lowercase_title])
+        ltitle = pf.stringify(inlines).lower()
 
         if len(classes) == 1 and classes[0] in SPECIAL_CLASSES:
             remove_attributes(blockquote)