Update demo

style.css

@@ -0,0 +1,37 @@
+body {
+    background-color: #eee;
+}
+.fullScreenFrame > div {
+    display: flex;
+    justify-content: center;
+}
+.stButton>button {
+    color: #4F8BF9;
+    border-radius: 50%;
+    height: 3em;
+    width: 3em;
+}
+
+.stTextInput>div>div>input {
+    color: #4F8BF9;
+}
+.stTextArea>div>div>input {
+    color: #4F8BF9;
+}
+
+
+.st-cj {
+    min-height: 500px;
+    spellcheck="false";
+    color: #4F8BF9;
+}
+.st-ch {
+    min-height: 500px;
+    spellcheck="false";
+    color: #4F8BF9;
+}
+.st-bb {
+    min-height: 500px;
+    spellcheck="false";
+    color: #4F8BF9;
+}