.box{
    display:flex;
     flex-wrap:wrap-reverse;
    margin-top:50px;
justify-content: center;

}
h1{
    text-align: center;
}
.btn{
justify-content: center;
display: flex;
height: 150px;
width: 150px;
border:3px Solid black;
margin:10px;
border-radius: 2rem;;

}
h2{
    text-align: center;
    margin-top: 40px;
}
.red{
  background-color: red;  
}
.blue{
    background-color: aqua;
}
.green{
    background-color:green;
}
.yellow{
    background-color: yellow;
}
.flash{
    background-color: aliceblue;
}
.userflash{
    background-color: rgb(49, 80, 3);
}