* {
    font-family: 'Helvetica', sans-serif;
    background-color: black;
}
.button {
    cursor: pointer;
    color: white;
    background-color: transparent;
    padding: 8px 25px;
    border-radius: 20px;
    border: solid 1px white;
    border-style: dotted;
    margin: 20px;
}
.button:hover {
    color: black;
    background-color: transparent;
    border: solid 1px black;
    border-style: dotted;
}
.button:active {
    color: black;
    background-color: transparent;
}
.wrapper {
    margin-left: auto;
    margin-right: auto;
    display: flex;
    align-items: stretch;
}