add text area styles

src/app.css

@@ -10,6 +10,17 @@
   border-color: #38444d;
 }
 
+.text-area {
+  border: none;
+  overflow: auto;
+  outline: none; 
+  box-shadow: none;
+  background-color: #40444b; 
+  width: 100%;
+  min-height: 100px;
+  overflow-y: hidden;
+}
+
 .content {
   max-width: 1440px;
   margin: 0 auto;