*
{
    box-sizing: border-box;
}

body
{
    font-family: Arial, Helvetica, sans-serif;
    height: 100vh;
    overflow: hidden;
    margin: 0;
}

h4
{
    font-size: 20px;
    margin: 5px;
    text-transform: uppercase;
}

.counter
{
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.counter.hide
{
    transform: translate(-50%, -50%) scale(0);
    animation: hide 0.2s ease-out;
}

.final
{
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    text-align: center;
}

.final.show
{
    transform: translate(-50%, -50%) scale(1);
    animation: show 0.2s ease-in;
}

.nums
{
    color: #3498db;
    font-size: 50px;
    position: relative;
    overflow: hidden;
    width: 250px;
    height: 50px;
}

.nums span
{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(120deg);
    transform-origin: bottom center;
}

.nums span.in
{
    transform: translate(-50%, -50%) rotate(0deg);
    animation: goIn 0.5s ease-in-out;
}

.nums span.out
{
    animation: goOut 0.5s ease-in-out;
}

@keyframes goIn
{
    0%
    {
        transform: translate(-50%, -50%) rotate(120deg);
    }

    30%
    {
        transform: translate(-50%, -50%) rotate(-20deg);
    }

    60%
    {
        transform: translate(-50%, -50%) rotate(10deg);
    }

    100%
    {
        transform: translate(-50%, -50%) rotate(0deg);
    }
}

@keyframes goOut
{
    0%
    {
        transform: translate(-50%, -50%) rotate(0deg);
    }

    60%
    {
        transform: translate(-50%, -50%) rotate(20deg);
    }

    100%
    {
        transform: translate(-50%, -50%) rotate(-120deg);
    }
}

@keyframes show
{
    0%
    {
        transform: translate(-50%, -50%) scale(0);
    }

    30%
    {
        transform: translate(-50%, -50%) scale(1.4);
    }

    100%
    {
        transform: translate(-50%, -50%) scale(1);
    }
}

@keyframes hide
{
    0%
    {
        transform: translate(-50%, -50%) scale(1);
    }

    100%
    {
        transform: translate(-50%, -50%) scale(0);
    }
}