body {
    margin: 0;
    overflow: hidden;
}

.actions {
    position: absolute;
    bottom:10px;
    left: 0;
    width: 100%;
    text-align: center;
}
.actions.is-hidden {
  display: none;
}
.actions button {
    display: inline-block;
    border:1px solid black;
    background:white;
    font-family: sans-serif;
    font-size: 20px;
    padding: 10px 20px;
    cursor: pointer;
    margin: 0 20px;
}