.container {
    display: flex;
	flex-direction: column;
    height: 100vh;
    height: 100svh;
}

#content {
	flex-grow: 1;
}

#start-btn, #stop-btn {
    padding: 10px;
}

#header, #menu {
    margin: 20px 0;
}

#header {
    text-align: center;
}

#notes #name {
    font-weight: bold;
}