.hkpv-viewer { width: 100%; }
.hkpv-viewer__title { margin-bottom: 14px; font-weight: 600; }

.hkpv-viewer__frame-wrap {
    width: 100%;
    height: var(--hkpv-height, calc(100vh - 140px));
    overflow: hidden;
    background: #f5f5f5;
}

.hkpv-viewer__frame {
    display: block;
    width: 100%;
    height: 100%;
    min-height: 0;
    border: 0;
    background: #fff;
}

.hkpv-viewer__actions { margin-top: 14px; }
.hkpv-viewer__download { display: inline-block; text-decoration: none; }