feat: Added base layout

public/css/site.css

@@ -0,0 +1,27 @@
+html,
+body {
+  margin: 0;
+  padding: 0;
+  height: 100vh;
+}
+
+body {
+  display: grid;
+  grid-template-rows: 2rem 1fr 1.5rem;
+}
+
+header {
+  background-color: lightcoral;
+}
+
+main {
+  background-color: lightgreen;
+  padding: 0 1rem;
+}
+
+footer {
+  background-color: lightskyblue;
+  display: grid;
+  place-items: center end;
+  padding: 0 0.5rem;
+}