diff --git a/data/projects.toml b/data/projects.toml
index ecff01f..c3718af 100644
--- a/data/projects.toml
+++ b/data/projects.toml
@@ -119,6 +119,14 @@ website = ""
 screenshots = ["concrete.css.png"]
 tags = ["classless"]
 
+["dev.css"]
+demo = "https://devcss.devins.page/demo"
+github = "intergrav/dev.css"
+note = ""
+website = "https://devcss.devins.page/"
+screenshots = ["dev.css.png"]
+tags = ["classless"]
+
 [Downstyler]
 demo = "https://waldyrious.github.io/downstyler"
 github = "waldyrious/downstyler"
diff --git a/screenshot/dev.css.png b/screenshot/dev.css.png
new file mode 100644
index 0000000..8f19a7c
Binary files /dev/null and b/screenshot/dev.css.png differ
diff --git a/thumbnail/dev.css.png b/thumbnail/dev.css.png
new file mode 100644
index 0000000..e76078a
Binary files /dev/null and b/thumbnail/dev.css.png differ