*{
    margin: 0;
    padding: 0;
}
body{
    text-align: center;
    background-color: #000;
}
.nav{
    background: rgba(0,0,49,.9);
    padding: 20px 0;
    color: #fff;
}
.highscore{
    position: absolute;
    right: 5vw;
}
.status{
    font-size: 30px;
    font-family: sans-serif;
    margin-top: 20px;
    font-weight: 600;
    color: #fff;
}
.main{
    /* margin-top:50px ; */
    border: 2px solid black;
    border-radius: 100%;
    width: 500px;
    height: 500px;
    margin: 50px auto;
    display: flex;
    justify-content: center;
    align-items: center;
    
    background: rgba(0,0,49,.9);
    /* transform: rotate(45deg); */
}
.startbtn{
    position: absolute;
    height: 150px;
    width: 150px;
    border: 3px solid white;
    border-radius: 100px;
    display: flex;
    font-size: 40px;
    font-family: sans-serif;
    font-weight: bold;
    justify-content: center;
    align-items: center;
    background: rgba(0,0,49,.9);
    color: #fff;
    cursor: pointer;
    box-shadow: 2px 2px 10px 0 rgba(0, 0, 0, 0.5);
    

}
.btn{
    border: 3px solid black;
    height: 200px;
    width: 200px;
    margin: 20px 10px;
    cursor: pointer;
}

.green{
    border-radius: 100% 0 0 0;
    background-color: aquamarine;
}
.orange{
    border-radius: 0 0 0 100%;
    background-color: orange;

}
.red{
    border-radius: 0 100% 0 0;
    background-color: red;
}
.blue{
    border-radius: 0 0 100% 0;
    background-color: blue;
}

.flash{
    background-color: #fff;
}