style.css

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

}
body{
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: rgb(99, 4, 47);

}.wrapper{
    height: 400px;
    width:400px ;
    background: white;
    border-radius: 10px;
}.back-view img{
    max-width: 50px;
    max-height: 50px;
    justify-content: space-around;
    
}.cards,.card,.view{
   display: flex;
   align-items: center;
   justify-content: space-around; 
   /* background: red; */
   background: whitesmoke;
}.cards{
    height: 100%;
    width: 100%;
    flex-wrap: wrap;
    justify-content: space-between;
    
    padding: 10px;
    position: relative;
    perspective: 800px;
    transform-style: preserve-3d;
    
} .card{
    height: 25%;
    width: 25%;
    cursor: pointer;
    position: relative;
    perspective: 800px;
    transform-style: preserve-3d ;
    
    
}
.view{
    height: 100%;
    width: 100%;
    background:rgb(255, 228, 240);
    position: absolute;
    transition: 0.25s linear ;
    backface-visibility: hidden;
    pointer-events: none;
    user-select: none;
    
}

.back-view{
    justify-content: space-around;
    height: 85px;
    width: 85px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    border-radius: 5px;
    transform:rotateY(-180deg) 
}.front-view{
    justify-content: space-around;
    height: 85px;
    width: 85px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    border-radius: 5px;
}h1{
    font-size: 42;
    color:rgb(99, 4, 47); ;
}.card.flip .back-view{
    transform: rotateY(0);
}.card.flip .front-view{
    transform: rotateY(180deg);
} .card.shake{
    animation: shake 0.35s ease-in-out;
}@keyframes shake{
    0%, 100%{
        transform: translateX(0);
    }
    20%{
        transform: translateX(-13px);
    }
    40%{
        transform: translateX(13px);
    }60%{
        transform: translateX(-8px);
    }80%{
        transform: translateX(8px);
    }
}