body
{
	width: 100%;
	height: 100%;
	overflow: hidden;
}

.container 
{
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    height: 300px;
    border: 1px solid #ccc;
}

.center
{
    padding: 20px;
    background-color: #f0f0f0;
    border: 1px solid #333;
    width: 50%;
    text-align: center;
}