.mejs-overlay-button {
    position: absolute;
    top: 35%;
    left: 43%;
    width: 57px;
    height: 57px;
    margin: -50px 0 0 -50px;
    background: url(https://www.azbil.com/jp/corporate/pr/movie/build/bigplay_mini.png) no-repeat;
}

.mejs-overlay-button:hover {
    background: url(https://www.azbil.com/jp/corporate/pr/movie/build/bigplay_mini.png) no-repeat 0 -67px;
}

.mejs-overlay-button1 {
    position: absolute;
    top: 45%;
    left: 45%;
    width: 57px;
    height: 57px;
    margin: -50px 0 0 -50px;
    background: url(https://www.azbil.com/jp/corporate/pr/movie/build/bigplay_mini.png) no-repeat;
}

.mejs-overlay-button1:hover {
    background: url(https://www.azbil.com/jp/corporate/pr/movie/build/bigplay_mini.png) no-repeat 0 -67px;
}