.chart-ct {
    height: calc(100% - 10px);
    width: 100%;
}

html, body, .row {
    height: 100%;
}

.loader {
    position: absolute;
    top: calc(50% - 60px);
    left: calc(50% - 60px);
    border: 16px solid #f3f3f3;
    /* Light grey */
    border-top: 16px solid #24282D;
    /* Blue */
    border-radius: 50%;
    width: 120px;
    height: 120px;
    animation: spin 2s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}