Move style from main-app.component to different file.

src/main-app.component.scss

@@ -0,0 +1,58 @@
+:host {
+    display: flex;
+    flex-direction: column;
+    overflow: hidden;
+}
+
+:host > div:first-child {
+    display: flex;
+    flex: 1;
+    align-items: center;
+    justify-content: center;
+}
+
+button {
+    margin: 2px;
+}
+
+:host > div:last-child {
+    display: flex;
+    flex: 5;
+    position: relative;
+}
+
+:host > div:last-child > svg-keyboard {
+    width: 80%;
+    position: absolute;
+    left: 50%;
+    transform: translateX(-50%);
+    animation-duration: 0.75s;
+    animation-timing-function: ease-in-out;
+}
+
+@keyframes animate-center-left {
+    0% {
+        transform: translateX(-50%);
+        left: 50%;
+    }
+    100% {
+        transform: translateX(-100%);
+        left: 0%;
+    }
+}
+
+@keyframes animate-center-right {
+    0% {
+        transform: translateX(-50%);
+        left: 50%;
+    }
+    100% {
+        transform: translateX(0%);
+        left: 100%;
+    }
+}
+
+[hidden] {
+    display: none
+}
+