Initial marketing site - interactive layers widget, dark theme, responsive

Dockerfile

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+FROM nginx:alpine
+COPY index.html /usr/share/nginx/html/index.html
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+EXPOSE 80

nginx.conf

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+server {
+    listen 80;
+    server_name klongklong.com www.klongklong.com;
+    root /usr/share/nginx/html;
+    index index.html;
+
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+
+    location ~* \.(css|js|png|jpg|jpeg|gif|ico|svg|woff2)$ {
+        expires 7d;
+        add_header Cache-Control "public, immutable";
+    }
+
+    add_header X-Frame-Options "SAMEORIGIN" always;
+    add_header X-Content-Type-Options "nosniff" always;
+    add_header Referrer-Policy "strict-origin-when-cross-origin" always;
+}