#ms-pdf-hover-preview,
.ms-pdf-hover-preview {
    position: fixed;
    z-index: 2147483647;
    width: 320px;
    height: 430px;
    background: #fff;
    border: 1px solid rgba(0,0,0,.18);
    border-radius: 5px;
    box-shadow: 0 10px 35px rgba(0,0,0,.28);
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(4px);
    transition: opacity .12s ease, transform .12s ease, visibility .12s ease;
}

.ms-pdf-hover-preview.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.ms-pdf-hover-preview__frame {
    display: block;
    width: 100%;
    height: 100%;
    border: 0;
    background: #fff;
}

.ms-pdf-hover-preview__loading {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    font: 14px/1.4 Arial, sans-serif;
    color: #555;
    background: #fff;
}

@media (max-width: 700px) {
    .ms-pdf-hover-preview {
        display: none !important;
    }
}