Update public/data/pins.csv, public/css/styles.css

public/css/styles.css

+html, body {
+    height: 100%;
+    margin: 0;
+    padding: 0;
+}
+
+#map {
+    height: 100vh;
+    width: 100vw;
+}
+
+.custom-pin .pin {
+    width: 15px;
+    height: 15px;
+    border-radius: 50%;
+}