#button{
    font-size: 24px;
    font-family: "comic sans ms","Tahoma";
    border-radius: 20%;
    background-color: chartreuse#3e8e41;
    color: red;
}
#button:hover {
    box-shadow: 0 4px black;
    transition: .5s;
    background-color: lightblue;
    
    cursor: url('cursor.cur'), auto;
    /* cursor: wait; */
}
div{
    text-align: center;
}
html {
    background-color: gray;
}