style.css

.game-box {
    text-align:center;   
}
.game-info {
    text-align:center; 
    font-family:-apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height:24px;
}
body{
    background-color: rgb(0, 0, 20);
}
.side-text{
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

.button {
    background-color: transparent;
    border-radius: 3px;
    border: 0;
    box-shadow: inset 0 0 0 2px #fff;
    color: #fff;
    cursor: pointer;
    display: inline-block;
    font-size: 0.8em;
    font-weight: 600;
    height: 3.125em;
    letter-spacing: 0.225em;
    line-height: 3.125em;
    width: 15em;
    padding: 0 2.75em;
    text-decoration: none;
    text-align: center;
    text-transform: uppercase;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

@media only screen and (max-width: 1380px){
    .img-keys{
        display:none;
    }
    .side-text{
        display:none;
    }
    .button{
        display:none;
    }
}