Index HTML page and styling w/ capabilties JSON data that defines buttons to display and lets other clients discover its capabilities.

style.h

@@ -0,0 +1,47 @@
+const char css[] PROGMEM = R"=====(
+body { 
+  font-family: Helvetica Neue;
+  background-color: black;
+  color: white;
+}
+h2 {
+  text-transform: uppercase;
+  width: 100%;
+}
+hr {
+  width: 100%;
+  border: 1px solid #323136;
+  margin-top: 1.5rem;
+}
+.container {
+  display: flex;
+  flex-wrap: wrap;
+  width: 95%;
+  max-width: 1000px;
+  margin: 0 auto;
+  justify-content: space-between;
+}
+.container button {
+  -webkit-apperance: unset;
+  touch-action: manipulation;
+  width: 8rem;
+  height: 2rem;
+  border-radius: 16px;
+  border: unset;
+  background-color: white;
+  color: black;
+  font-weight: 600;
+  margin: 0.3rem 0;
+  padding: 0.9rem;
+  font-size: 1.2rem;
+  line-height: 1.2rem;
+  box-sizing: unset;
+
+  @media (min-width: 768px) {
+    margin: 0.3rem;
+  }
+}
+.container button i::before {
+  content: '';
+}
+)=====";