html{
    height: 100vh;
}
.card-container
{
    
    font-size: 2rem;
    font-weight: bold;
    width: 400px;
    height: 250px;
    margin: 80px auto;
    border-radius: 10px;
    perspective: 1400px;
}

.card
{
    position: relative;
    height: 100%;
    border-radius: 10px;
    width: 100%;
    transform-style: preserve-3d;
}

.front{
    padding-left: 3rem;
    display: flex;
    width: 100%;
    height: 100%;
    border-radius: 10px;
    justify-content: center;
    align-items: center;
    backface-visibility: hidden;
}
.back
{
    display: flex;
    width: 100%;
    height: 100%;
    border-radius: 10px;
    justify-content: center;
    align-items: center;
    backface-visibility: hidden;
}

.front
{
    color: #fff;
    background:#055a1c;
}

.back
{
    position: absolute;
    top: 0;
    left: 0;
    transform: rotateY(180deg);
    color: #2196f3;
    background: #fff;
}