*{
    padding: 0;
    margin: 0;
}
h3{
    margin-top: 20px;
    font-family: "DM Serif Display", serif;
    font-weight: 400;
}
body{
    text-align: center;
}
.red{
    background-color: red;
}
.green{
    background-color: green;
    
}
.blue{
    background-color: blue;
}
.pink{
    background-color: pink;
}
.box_containeer{
    margin-top: 20px;
    display: flex;
    justify-content: center;
}
.box{
    height: 200px;
    width: 200px;
    border: 10px solid black;
    border-radius: 20px;
    margin: 30px;
    
}
.flash{
    background-color: white;
}
@media screen and (max-width: 500px) {
    .box{
        height: 120px;
        width: 120px;
        margin: 15px;
    }
}