Please select Row stretch http://prntscr.com/l7xijc https://kb.wpbakery.com/docs/wpbakery-page-builder-how-tos/how-to-make-full-width-or-full-height-row/ https://wpbakery.com/video-academy/category/row/
Also, watch our video tutorials https://www.youtube.com/playlist?list=PLMqMSqDgPNmCCyem_z9l2ZJ1owQUaFCE3
Add this code in Custom css for page http://prntscr.com/l7xlqe :
.swiper-entry .swiper-custom-left, .swiper-entry .swiper-custom-right {
opacity: 1 !important;
visibility: visible !important;
}
.swiper-entry .swiper-custom-left {
color: red;
}
.swiper-custom-right:before {
color: red;
}
.swiper-custom-left:before {
color: black;
}
Regards