audio {
    margin-left: 10%;
    width: 80%;
    padding: 5px; 
    box-shadow: 4px 4px 5px rgba(0, 0, 0, 0.3); 
    -webkit-transition: .3s; 
    transition: .3s;
    background-color: #fafafa;
}
audio:hover, audio:focus {
    -webkit-transform: scale(1.1);
    transform: scale(1.1);
}
audio::-internal-media-controls-download-button {
    display:none;
}
audio::-webkit-media-controls-enclosure {
    overflow:hidden;
}
audio::-webkit-media-controls-panel {
    width: calc(100% );
}
.audio-container {
    width: 50%;
    box-sizing: border-box;
    padding: 20px 20px 30px;
    float: left;
}
.audio-container h1 {
    font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
    font-size: 1em;
    margin-bottom: 20px;

}
@media screen and (min-width: 671px){
    .audio-container:nth-child(4n+2) {
        background-color: #1947a0;
        color: white;
    }
    .audio-container:nth-child(4n+3) {
        background-color: #1947a0;
        color: white;
    }
}
@media screen and (max-width: 670px) {
    .audio-container {
        width: 100%;
    }
    .audio-container:nth-child(2n+0) {
        background-color: #1947a0;
        color: white;
    }
}
@media screen and (max-width: 450px) {
    .audio-container h1 {
        font-size: 0.8em;
    }
}