.start-75 {
    left: 75%!important
}

.start-25 {
    left: 25%!important
}

.top-25 {
    top: 25%!important
}

.top-75 {
    top: 75%!important
}

.bottom-25 {
    bottom: 25%!important
}

.bottom-75 {
    bottom: 75%!important
}