style.css

body {
    margin: 0;
    padding: 0;
    background: #f5f5f5;
    color: #000;
    font-family: 'Roboto', sans-serif;
    font-weight: 400;
}

.header {
    background: #fff;
    padding: 20px 25px;
    border-bottom: 1px solid #eee;
}

.header-title {
    font-size: 18px;
    color: #000;
    font-weight: 400;
    color: #000;
}

.main {
    display: flex;
    width: calc(100% - 40px);
    margin: 0 20px;
    margin-top: 20px;
    margin-left: 0;
}

.main-title {
    margin-top: 15px;
    font-size: 20px;
    color: #000;
}

.main-description {
    margin-top: 15px;
    font-size: 14px;
    color: #757575;
}

.main-video {
    flex: 1;
    margin-right: 20px;
    border-right: 1px solid #e0e0e0;
}

.main-video video {
    max-height: 90vh;
    min-height: 380px;
    width: auto;
    border: 1px solid #eee;
}

.main-suggestion {
    width: 280px;
    margin-right: 50px;
}

.suggestion {
    margin-bottom: 12px;
    cursor: pointer;
    padding: 7px;
    border-radius: 5px;
}

.suggestion:hover .suggestion-title {
    text-decoration: underline;
}

.suggestion-title {
    font-size: 15px;
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
    margin-bottom: 8px;
}

.suggestion-description {
    color: #757575;
    font-size: 12px;
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
    margin-top: 4px;
}

.suggestion-selected {
    background-color: #ef5350;
    color: #fff;
}

.suggestion-selected .suggestion-description {
    color: #ffcdd2;
}

.menu {
    width: auto;
    margin-right: 40px;
    min-width: 250px;
    padding-left: 20px;
}

.menu-item {
    cursor: pointer;
    padding: 12px 7px;
    border-radius: 5px;
}

.menu-item.menu-item-selected {
    background-color: #e0e0e0;
}

.menu-item-text {
    font-size: 15px;
    color: #000;
}

.menu-item:hover .menu-item-text {
    text-decoration: underline;
}

.main-categories {
    display: flex;
    margin-top: 10px;
}

.main-category {
    border-radius: 5px;
    background-color: #e0e0e0;
    color: #616161;
    padding: 4px 6px;
    font-size: 12px;
    letter-spacing: 0.089em;
    display: inline-block;
    margin-right: 6px;
    margin-bottom: 6px;
}