diff --git a/static/css/custom.css b/static/css/custom.css
new file mode 100644
index 0000000..b1f597f
--- /dev/null
+++ b/static/css/custom.css
@@ -0,0 +1,10 @@
+/* Site title - homepage header container */
+.header__container::after {
+  content: '';
+  display: block;
+  width: 100%;
+  height: 4px;
+  background: #e22d30;
+  margin: 15px auto 0;
+  border-radius: 0;
+}