html {
    height: 100%;
    width: 100%;
    position: absolute; 
    top: 0;
    left: 0;
    background: linear-gradient(45deg, #bfad87, #252523);
    color: #ffffff;
    font-family: Arial, Helvetica, sans-serif;
}

.center {
    margin: 0;
    position: absolute;
    width: 90%;
    top: 50%;
    left: 50%;
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    text-align: center;
}

  
@media all and (orientation:portrait) {
    .center {
        font-size: 3vw;
    }
}

@media all and (orientation:landscape) {
    .center {
        font-size: 3vh;
    }
}

.timerbox {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    margin-top: 4rem;
}

.timeelem {
    display: flex;
    flex-direction: column;
    text-align: center;
    margin: 1rem;
}