1diff --git a/.gitmodules b/.gitmodules
 2new file mode 100644
 3index 0000000000000000000000000000000000000000..860ffa4767bb828c0e7a8b76e836c17e6f32afe0
 4--- /dev/null
 5+++ b/.gitmodules
 6@@ -0,0 +1,3 @@
 7+[submodule "scss/bootstrap"]
 8+	path = scss/bootstrap
 9+	url = https://github.com/twbs/bootstrap.git
10diff --git a/Makefile b/Makefile
11index ecf165dce0342209fc2879c732b2eb8d7b06eba0..c947b684f1eaa54cd28a07d37e68eee5ad7f79fc 100644
12--- a/Makefile
13+++ b/Makefile
14@@ -1,8 +1,12 @@
15-build:
16+build: sass
17 	go build -o bin/cerrado
18 
19-run:
20+run: sass
21 	go run .
22 
23 test:
24 	go test -v --tags=unit ./...
25+
26+sass:
27+	sassc \
28+		-I scss scss/main.scss bin/main.css
29diff --git a/scss/main.scss b/scss/main.scss
30new file mode 100644
31index 0000000000000000000000000000000000000000..ae493855c99c453d9ac962645ce58497402ac5b2
32--- /dev/null
33+++ b/scss/main.scss
34@@ -0,0 +1,9 @@
35+@import "bootstrap/scss/_functions.scss";
36+@import "bootstrap/scss/_variables.scss";
37+@import "bootstrap/scss/_variables-dark.scss";
38+@import "bootstrap/scss/_maps.scss";
39+@import "bootstrap/scss/_mixins.scss";
40+@import "bootstrap/scss/_utilities.scss";
41+
42+
43+@import "bootstrap/scss/_root.scss";