.wrapper {
    width: 100%;
    padding: 30px;
    min-height: 100%;
    margin-bottom: 40px;
}

.content {
    background-color: #181616;
    padding: 30px; 
    margin-top: 2rem;
    margin-bottom: 2rem;
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

.btn-group {
    margin: 10px;
}

.chart-container {
    margin: 10px;
    width: 100%;
    height: 500px;
    position: relative;
}