.b-video {
    position: relative;
    max-width: 100%;
}

.b-video__preview {
    position: relative;
    padding-top: 56.25%;
    background-size: cover;
    background-position: center;
}

.b-video__play {
    position: absolute;
    cursor: pointer;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 64px;
    height: 64px;
    border: none;
    border-radius: 50%;
    background: rgba(0,0,0,0.6);
}

.b-video__player {
    width: 100%;
    height: auto;
}
.b-video__play::before {
    content: '';
    cursor: pointer;
    display: block;
    margin: auto;
    width: 0;
    height: 0;
    border-left: 18px solid #fff;
    border-top: 12px solid transparent;
    border-bottom: 12px solid transparent;
}
.b-video__inner {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    overflow: hidden;
}
.b-video__preview,
.b-video__player {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.b-video__player {
    display: none;
}