@MyMawduh Your welcome
For white color use below code:
@media screen and (min-width: 750px){ .slideshow__controls { margin-top: -45px; z-index: 9999; } .slider-counter__link--dots .dot { background-color: #fff!important; } .slider-counter__link--active.slider-counter__link--dots .dot{ border:1px solid #fff!important; } }