*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body{
    /* background-image: linear-gradient(red,green); */
    background: rgb(157, 247, 247);
}
#btn{
    width: 200px;
    position: absolute;
    left: 50%;
    top: 10%;
    transform: translate(-50%,-50%);
    padding: 20px;
    text-align: center;
    font-size: 20px;
    border-radius: 45%;
    background-color: black;
    color: white;
}
img{
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
    box-shadow: 3px 3px 10px rgb(190, 84, 84);
}