.timeline {
    border-left: 1px solid hsl(0, 0%, 90%);
    position: relative;
    list-style: none;
    margin-left: 100px;
}

.timeline .timeline-item {
    position: relative;
}

.timeline .timeline-item:after {
    position: absolute;
    display: block;
    top: 0;
}

.timeline .timeline-item:after {
    background-color: hsl(0, 0%, 90%);
    left: -38px;
    border-radius: 50%;
    height: 11px;
    width: 11px;
    content: "";
}

.canvas-size {
    width: 500px;
    height: 500px;
}

.accordion-button:not(.collapsed) {
    color: var(--bs-gray-100);
    background-color: var(--bs-gray-600);
    box-shadow: inset 0 calc(-1 * var(--bs-accordion-border-width)) 0 var(--bs-accordion-border-color);
}
.accordion-button:not(.collapsed)::after {
    background-image: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%236C757D'><path fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/></svg>") !important;
    color: var(--bs-gray-100);
    transform: var(--bs-accordion-btn-icon-transform);
}
.accordion-button:not(.collapsed) {
    color: var(--bs-gray-800) ;
    background-color: var(--bs-gray-400);
}
.accordion-button {
    color: var(--bs-gray-100);
    background-color: var(--bs-gray-600);
}
.accordion-button collapse {
    color: var(--bs-blue);
}
.accordion-button:after {
    background-image: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23dee2e6'><path fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/></svg>") !important;
}