feat(style.css): style no-connection-icon and client list

src/judas_server/web/static/css/style.css

@@ -223,3 +223,31 @@ header a {
   border-radius: 1rem;
   opacity: 0.8;
 }
+
+#no-connection-icon {
+  font-size: 1.5rem;
+  vertical-align: middle;
+  color: var(--ctp-red);
+}
+
+ul#client-list {
+  list-style: none;
+  display: flex;
+  flex-direction: column;
+}
+
+ul#client-list li {
+  padding: 0 0.5rem;
+  cursor: default;
+}
+
+ul#client-list li:hover {
+  background-color: var(--ctp-surface0);
+}
+
+ul#client-list li a {
+  display: block;
+  color: var(--ctp-text);
+  text-decoration: none;
+  transition: 0.1s ease-in-out;
+}