.play,
.pause {
    width: 50px;
    height: 50px;
    border: 0px;
}

.play {
    background: url('https://dnr.maryland.gov/publiclands/PublishingImages/dnr-play-btn.png') no-repeat center / 50%; 

}

.pause {
    background: url('https://dnr.maryland.gov/publiclands/PublishingImages/dnr-pause-btn.png') no-repeat center / 50%;
}

.txbox {
    padding: 3px;
    border: solid 1px lightgray;
}

.artbox-wide {
    position: relative;
    width: 100%;
    max-width: 700px;
    
}

.artbox-tall {
    position: relative;
    width: 100%;
    max-width: 300px;
  
}

hr {
    border: solid 1px green;
}