diff --git a/.drone.yml b/.drone.yml
index d94bcaf116eb..0ee9ffa07dac 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -20,6 +20,7 @@ pipeline:
       - make generate
       - make vet
       - make lint
+      - make stylesheets-check
       - make misspell-check
       - make test-vendor
       - make build
diff --git a/.drone.yml.sig b/.drone.yml.sig
index 46cb4a266a79..d6ae58f52e50 100644
--- a/.drone.yml.sig
+++ b/.drone.yml.sig
@@ -1 +1 @@
-eyJhbGciOiJIUzI1NiJ9.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.cBem20kZwKnSpYb6hodK224LM77MJaSNQNNmh0XEGbY
\ No newline at end of file
+eyJhbGciOiJIUzI1NiJ9.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.WyCnk8HuDPUaFQfIqdeVLydJoknM07AjiAl57Cj2MHg
\ No newline at end of file
diff --git a/Makefile b/Makefile
index bee8712b6895..b3474375f696 100644
--- a/Makefile
+++ b/Makefile
@@ -15,7 +15,6 @@ endif
 
 BINDATA := modules/{options,public,templates}/bindata.go
 STYLESHEETS := $(wildcard public/less/index.less public/less/_*.less)
-JAVASCRIPTS :=
 DOCKER_TAG := gitea/gitea:latest
 GOFILES := $(shell find . -name "*.go" -type f ! -path "./vendor/*" ! -path "*/bindata.go")
 GOFMT ?= gofmt -s
@@ -82,7 +81,7 @@ generate-swagger:
 	swagger generate spec -o ./public/swagger.v1.json
 	$(SED_INPLACE) "s;\".ref\": \"#/definitions/GPGKey\";\"type\": \"object\";g" ./public/swagger.v1.json
 	$(SED_INPLACE) "s;^          \".ref\": \"#/definitions/Repository\";          \"type\": \"object\";g" ./public/swagger.v1.json
-	
+
 .PHONY: errcheck
 errcheck:
 	@hash errcheck > /dev/null 2>&1; if [ $$? -ne 0 ]; then \
@@ -261,12 +260,24 @@ javascripts: public/js/index.js
 public/js/index.js: $(JAVASCRIPTS)
 	cat $< >| $@
 
+.PHONY: stylesheets-check
+stylesheets-check: stylesheets
+	@diff=$$(git diff public/css/index.css); \
+	if [ -n "$$diff" ]; then \
+		echo "Please run 'make less' and commit the result:"; \
+		echo "$${diff}"; \
+		exit 1; \
+	fi;
+
 .PHONY: stylesheets
 stylesheets: public/css/index.css
 
 .IGNORE: public/css/index.css
 public/css/index.css: $(STYLESHEETS)
-	lessc $< $@
+	@which lessc > /dev/null; if [ $$? -ne 0 ]; then \
+		go get -u github.com/kib357/less-go/lessc; \
+	fi
+	lessc -i $< -o $@
 
 .PHONY: swagger-ui
 swagger-ui:
@@ -276,9 +287,6 @@ swagger-ui:
 	rm -Rf /tmp/swagger-ui
 	$(SED_INPLACE) "s;http://petstore.swagger.io/v2/swagger.json;../../swagger.v1.json;g" public/assets/swagger-ui/index.html
 
-.PHONY: assets
-assets: javascripts stylesheets
-
 .PHONY: update-translations
 update-translations:
 	mkdir -p ./translations
@@ -287,4 +295,4 @@ update-translations:
 	$(SED_INPLACE) -e 's/="/=/g' -e 's/"$$//g' ./translations/*.ini
 	$(SED_INPLACE) -e 's/\\"/"/g' ./translations/*.ini
 	mv ./translations/*.ini ./options/locale/
-	rmdir ./translations
\ No newline at end of file
+	rmdir ./translations
diff --git a/public/css/index.css b/public/css/index.css
index a12f33e18e29..9d82324ef17b 100644
--- a/public/css/index.css
+++ b/public/css/index.css
@@ -430,28 +430,28 @@ footer .ui.language .menu {
 }
 @media only screen and (max-width: 1200px) {
   .ui.menu.new-menu {
-      overflow-x: auto !important;
-      justify-content: left !important;
-      padding-bottom: 5px;
+    overflow-x: auto !important;
+    justify-content: left !important;
+    padding-bottom: 5px;
   }
   .ui.menu.new-menu::-webkit-scrollbar {
-      height: 8px;
-      display: none;
+    height: 8px;
+    display: none;
   }
   .ui.menu.new-menu:hover::-webkit-scrollbar {
     display: block;
   }
   .ui.menu.new-menu::-webkit-scrollbar-track {
-    background: rgba(0,0,0,0.01);
+    background: rgba(0, 0, 0, 0.01);
   }
   .ui.menu.new-menu::-webkit-scrollbar-thumb {
-      background:rgba(0,0,0,0.2);
+    background: rgba(0, 0, 0, 0.2);
   }
   .ui.menu.new-menu:after {
     position: absolute;
     margin-top: -15px;
     display: block;
-    background-image: linear-gradient(to right, rgba(255, 255, 255, 0), rgba(255, 255, 255, 1) 100%);
+    background-image: linear-gradient(to right, rgba(255, 255, 255, 0), #ffffff 100%);
     content: ' ';
     right: 0;
     height: 53px;