.custom-team img {
    border-radius: 50%;
}

.custom-team figure div::before {
    content: " ";
  position: absolute;
  display: block;
  z-index: 100;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border: 18px solid #fff;
  opacity: 0.5;
  border-radius: 50%;
}

.custom-team figure div::after {
  width: inherit;
  height: inherit;
  background-image: linear-gradient(127deg,rgba(10,173,214,0.9) 0%,rgba(121,202,46,0.9) 100%);
  content: " ";
  position: absolute;
  display: block;
  border-radius: 50%;
  z-index: 100;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  -webkit-transition: all ease .5s;
  -moz-transition: all ease .5s;
  -ms-transition: all ease .5s;
  -o-transition: all ease .5s;
  transition: all ease .5s;
  opacity: 0;

}

.custom-team figure div:hover::after  {
    opacity: 0.8;
}