.brief-president .president::before {
  content: "";
  width: 300px;
  height: 300px;
  position: absolute;
  border-radius: 50%;
  right: 200px;
  bottom: 230px;
  z-index: -1;
  background-color: rgba(128, 128, 128, 0.61);
}

.brief-president .president::after {
  content: "";
  width: 370px;
  height: 500px;
  position: absolute;
  border-radius: 50%;
  right: 10px;
  bottom: 25px;
  border: 2px #23a095 solid;
}

.brief-president::after {
  content: "";
  width: 200px;
  height: 200px;
  position: absolute;
  border-radius: 50%;
  z-index: -1;
  right: 120px;
  top: 1800px;
  background-color: rgba(128, 128, 128, 0.61);
}

.brief-dean .dean::before {
  content: "";
  width: 400px;
  height: 400px;
  position: absolute;
  border-radius: 50%;
  left: 380px;
  bottom: 200px;
  z-index: -1;
  background-color: rgba(128, 128, 128, 0.61);
}

.brief-dean .dean::after {
  content: "";
  width: 600px;
  height: 500px;
  position: absolute;
  border-radius: 50%;
  right: 150px;
  top: 60px;
  z-index: -1;
  border: 2px #23a095 solid;
}