body{
    text-align: center;
}

.btn{
    height: 200px;
    width: 200px;
    border-radius: 20%;
    border: 10px solid black;
}

.btn-container{
    width: 500px;
    height: 500px;
    display: flex;
    justify-content: space-evenly;
    align-content: space-evenly;
    margin: auto;
    flex-wrap: wrap;
    position: relative;
}

.red{
    background-color: #d95980;
    border-top-left-radius: 100%;
}
.yellow{
    background-color: yellow;
    border-top-right-radius: 100%;
}
.green{
    background-color: lightseagreen;
    border-bottom-left-radius: 100% 
}
.blue{
    background-color: cornflowerblue;
    border-bottom-right-radius: 100% 
}

.flash{
    background-color: white;
}

.high-score{
    position: absolute;
    top: 1%;
    right: 10%;
}

i{
    position: absolute;
    top: 45.2%;
    left: 45.3%;
}