@import url('https://fonts.googleapis.com/css?family=Alata|Lato|Nunito&display=swap');

*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

body{
    height: 100vh;
    display: grid;
    background-color: rgb(183, 142, 161);
    font-family: 'Nunito', 'Alata', 'Lato', sans-serif;

    
}
img{
    width: 100px;
}

.memory-game{
    width: 640px;
    height: 640px;
    margin: auto;
    display: flex;
    flex-wrap: wrap;
    perspective: 1000px;
}

.memory-card{
    width: 24%; 
    margin: 2px; 
    position: relative;
    transform: scale(1);
    transform-style: preserve-3d;
    transition: transform .5s;
}

.memory-card:active{
    transform: scale(.97);
    transition: transform .2s;
}

.memory-card.flip{
    transform: rotateY(180deg);
}

.front-face,
.back-face{
    width: 100%;
    height: 100%;
    padding: 20px;
    position: absolute;
    border-radius: 5px;
    background: #2f3033;
    backface-visibility: hidden;
}

.front-face{
    transform: rotateY(180deg);
}

footer{
    text-align: center;
}
footer p,a{
    color: #2f3033;
    font-size: 18px;
    font-family: 'Nunito', 'Alata', 'Lato', sans-serif;
   
}
@media (min-width: 320px) and (max-width: 680px) {
  
    .memory-game{
        width: 100%;
        height: auto;
        justify-content: center;
    }
    .memory-card{
        width: 80px; 
        height:  80px;
    }

    .front-face,
    .back-face{
    padding: 5px;            
    
  }
}