ul.nav a:hover {
    background: #007bff !important;
    color: black !important;
}

body, html {
    height: 100%;
    margin: 0;
}

.wrapper {
    display: flex;
    height: 100vh;
}

.sidebar {
    width: 80px !important;
}

.content {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
}

.chart {
    max-height: 300px;
    min-height: 50%;
}