.admin__menu .item-core.level-0 > a:before {
    background: url(../images/logo-menu.svg) no-repeat 50% 50%;
    background-size: contain;
    content: '';
    display: inline-block;
    height: 25px;
    margin-right: 12px;
    vertical-align: top;
    width: 100%;
}

.admin__menu .item-core.level-0._active > a:before,
.admin__menu .item-core.level-0:hover > a:before {
    background: url(../images/logo-menu-hover.svg) no-repeat 50% 50%;
    background-size: contain;
}

.config-nav-block.experius-tab strong:before {
    background: url(../images/logo-menu-hover.svg) no-repeat 50% 50%;
    background-size: contain;
    content: '';
    display: inline-block;
    height: 16px;
    margin-right: 12px;
    vertical-align: bottom;
    width: 16px;
}

body[class*='page-layout-admin'] > div.menu-wrapper {
    left: 0 !important;
    position: fixed !important;
}

body[class*='page-layout-admin'] > div.menu-wrapper~.page-wrapper {
    margin-left: 8.8rem;
}

body[class*='adminhtml-email_template-preview'] iframe#preview_iframe {
    height: 100vh;
}