body{ 
    font-family: sans-serif;
    text-align: center;
    background-color: black;
    color:white;
}
img{
    width: 50%;
    height: auto;
    align-self: center;
}
button{
    align-self: center;
    border: 1px;
    border-style: solid;
    background-color: white;
    font-size: large;
}
button:hover{
    background-color: gray;
}