.calendars-ellipsis-loader
{
    align-items: center;
    display: flex;
    height: 700px;
    justify-content: center;
    padding: 15px 32px;
    width: 100%;
}
.calendars-ellipsis-loader .bt-spinner
{
    animation: spin 1s linear infinite;
    background-color: transparent;
    border: 4px solid #fff;
    border-radius: 50%;
    height: 60px;
    width: 60px;
}
@keyframes spin
{
    0%
    {
        transform: rotate(0);
    }
    to
    {
        transform: rotate(1turn);
    }
}