body{
    text-align: center;
    /* background-color: black; */

}

.btn{
    height: 200px;
    width: 200px;
    border: 5px solid black;
    border-radius:20% ;
    margin: 2rem;
}
.btn-container{
    display: flex;
    justify-content: center;
}
.yellow{
    background-color: yellow;
}
.red{
    background-color: red;
    margin-top: 0rem;
}
.green{
    background-color: green;
        margin-top: 0rem;
}
.blue{
    background-color: blue;
}
.flash{
    background-color: white;
}
.userflash{
    background-color: slategrey;
}

.alert{
    background-color: rgb(255, 76, 76);
}
h4,p{
    color: #333333;
}
button{
    border: 2px solid black;
    border-radius: 2rem;
    height: 3rem;
    width: 7rem;
}

@media (max-width: 600px) {
    .btn{
    height: 130px;
    width: 130px;
    border: 2px solid black;
    border-radius:10% ;
    margin: 0.5rem;
    }
    .lastline{
        margin-top: 3rem;
    }
}