main{margin-top:-79px}.collapse-box button[data-bs-toggle=collapse]{background:transparent;border:0}[data-bs-toggle=collapse].btn-bc-dark .icon-chevron-down{position:relative;top:-5px;-webkit-transform:scaleY(-1);-ms-transform:scaleY(-1);transform:scaleY(-1)}[data-bs-toggle=collapse].btn-bc-dark.collapsed .icon-chevron-down{top:3px;-webkit-transform:scaleY(1);-ms-transform:scaleY(1);transform:scaleY(1)}