working form

Gemfile.lock

@@ -1,13 +1,3 @@
-GIT
-  remote: git://github.com/seyhunak/twitter-bootstrap-rails.git
-  revision: d3776ddd0b89d28fdebfd6e1c1541348cc90e5cc
-  specs:
-    twitter-bootstrap-rails (3.2.2)
-      actionpack (>= 3.1)
-      execjs (>= 2.2.2, >= 2.2)
-      less-rails (>= 2.5.0)
-      railties (>= 3.1)
-
 GEM
   remote: https://rubygems.org/
   specs:
@@ -49,6 +39,11 @@ GEM
       minitest (~> 5.1)
       tzinfo (~> 1.1)
     arel (7.1.1)
+    autoprefixer-rails (6.4.0.1)
+      execjs
+    bootstrap-sass (3.3.7)
+      autoprefixer-rails (>= 5.2.1)
+      sass (>= 3.3.4)
     builder (3.2.2)
     byebug (9.0.5)
     coffee-rails (4.2.1)
@@ -58,7 +53,6 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.10.0)
-    commonjs (0.2.7)
     concurrent-ruby (1.0.2)
     debug_inspector (0.0.2)
     dotenv (2.1.1)
@@ -75,13 +69,6 @@ GEM
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
-    less (2.6.0)
-      commonjs (~> 0.2.7)
-    less-rails (2.7.1)
-      actionpack (>= 4.0)
-      less (~> 2.6.0)
-      sprockets (> 2, < 4)
-      tilt
     libv8 (3.16.14.15)
     listen (3.0.8)
       rb-fsevent (~> 0.9, >= 0.9.4)
@@ -178,6 +165,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
+  bootstrap-sass (~> 3.3.6)
   byebug
   coffee-rails (~> 4.2)
   dotenv
@@ -191,7 +179,6 @@ DEPENDENCIES
   spring-watcher-listen (~> 2.0.0)
   sqlite3
   therubyracer
-  twitter-bootstrap-rails!
   tzinfo-data
   uglifier (>= 1.3.0)
   unpoly-rails