TeaWeb/web/css/main.scss

html, body {
}

.app-container {
	width: 100%;
	display: flex;
	justify-content: center;

	.app {
		width: 1200px;
		height: 900px;
		display: flex;
		flex-direction: column;
		resize: both;
		margin: 20px;
	}
}