.md-typeset img,
.md-typeset .giffer {
    margin-bottom: 50px;
    vertical-align: middle;
    width: 100%;
    box-shadow: 0 2px 2px rgba(0, 0, 0, 0.31);
    border-radius: 5px;
    border: 1px solid #AAA;
    padding: 2px;
    max-width: 800px !important;
    margin-left: auto;
    margin-right: auto;
    display: block;
}

.giffer {
    border: 1px solid #AAA !important;
}

.md-logo img {
    display: inherit;
    margin: 0;
    padding: 0;
    background-color: transparent;
    border-radius: 0;
    border: none;
    box-shadow: none;
    margin-top: -15px;
    transform: translateY(8px);
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 */
    padding-top: 25px;
    height: 0;
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.md-header__button.md-logo {
    margin: 0;
    padding: 0;
}
.md-header__button.md-logo img {
    width: 160px;
    height: auto;
}