html, body {margin: 0; height: 100%; overflow: auto}


.topbar {
    display: flex;
    align-items: center;     /* vertically center content */
    justify-content: flex-start; /* keep title on the left */
    background-color: #303030;
    padding: 25px 50px;      /* top/bottom and left/right padding */
}

.topbar h1 {
    color: white;
    font-size: 3rem;       /* adjust as needed */
    margin: 0;               /* remove default h1 margin */
    font-weight: 600;
}

html, body {
    margin: 0;
    padding: 0;
    background-color: #212121;
}  

.box {
    flex: 1;                        
    background-color: #898f8b;      /* light gray background */
    padding: 20px;
    border-radius: 8px;
    text-align: left;
    font-size: 20px;
}