_sass/_site-arrows.scss

.nav-circlepop a{
  width: 50px;
  height: 50px;
}

.nav-circlepop a::before{
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: #fff;
  content: '';
  opacity: 0;
  -webkit-transition: -webkit-transform 0.3s, opacity 0.3s;
  transition: transform 0.3s, opacity 0.3s;
  -webkit-transform: scale(0.9);
  transform: scale(0.9);
}

.nav-circlepop .icon-wrap{
  position: relative;
  display: block;
  margin: 10% 0 0 10%;
  width: 80%;
  height: 80%;
}

.nav-circlepop a.next .icon-wrap{
  -webkit-transform: rotate(180deg);
  transform: rotate(180deg);
}

.nav-circlepop .icon-wrap::before,
.nav-circlepop .icon-wrap::after{
  position: absolute;
  left: 25%;
  width: 3px;
  height: 50%;
  background: #fff;
  content: '';
  -webkit-transition: -webkit-transform 0.3s, background-color 0.3s;
  transition: transform 0.3s, background-color 0.3s;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

.nav-circlepop .icon-wrap::before{
  -webkit-transform: translateX(-50%) rotate(30deg);
  transform: translateX(-50%) rotate(30deg);
  -webkit-transform-origin: 0 100%;
  transform-origin: 0 100%;
}

.nav-circlepop .icon-wrap::after{
  top: 50%;
  -webkit-transform: translateX(-50%) rotate(-30deg);
  transform: translateX(-50%) rotate(-30deg);
  -webkit-transform-origin: 0 0;
  transform-origin: 0 0;
}

.nav-circlepop a:hover::before{
  opacity: 1;
  -webkit-transform: scale(1);
  transform: scale(1);
}

.nav-circlepop a:hover .icon-wrap::before,
.nav-circlepop a:hover .icon-wrap::after{
  background: #4aaf4c;
}

.nav-circlepop a:hover .icon-wrap::before{
  -webkit-transform: translateX(-50%) rotate(45deg);
  transform: translateX(-50%) rotate(45deg);
}

.nav-circlepop a:hover .icon-wrap::after{
  -webkit-transform: translateX(-50%) rotate(-45deg);
  transform: translateX(-50%) rotate(-45deg);
}