.bannerBtnSlide2 a span {
  display: inline-block;
  position: relative;
  transition: 0.5s;
}
.bannerBtnSlide2 a:hover span {
  padding-right: 10px;
  padding-left: 5px;  
}
.bannerBtnSlide2 a:hover span:after {
  opacity: 1;
  right: 0;
}