h1,
p {
    text-align: center;
}

.button {
    border: 2px solid black;
    padding: 50px;
    width: 20px;
    height: 20px;
    cursor: pointer;
    display:inline-block;
    margin: 20px;
    margin-left: 8%;

}

#blue {
    background-color: blue;
}

#red {
    background-color: red;
}

#purple {
    background-color: purple;
}

#green {
    background-color: green;
}

#yellow {
    background-color: yellow;
}