.underlayer {
  display: none;
}

.parallax:before {
  background-image: url("../images/common/main02.jpg") !important;
  background-position: right 35% top;
  background-size: cover;
  background-repeat: no-repeat;
}

.feature-exam-list {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
  max-width: 1200px;
  margin: 5% auto 0;
  -webkit-box-pack: start;
      -ms-flex-pack: start;
          justify-content: flex-start;
}

@media (min-width: 1140px) {
  .feature-exam-list li {
    width: calc((100% - 50px) / 4);
  }
  .feature-exam-list li:not(:nth-child(4n+1)) {
    margin-left: 16px;
  }
  .feature-exam-list li:nth-child(n+5) {
    margin-top: 34px;
  }
}
@media (max-width: 1139px) {
  .feature-exam-list {
    -webkit-box-pack: justify;
        -ms-flex-pack: justify;
            justify-content: space-between;
  }
  .feature-exam-list li {
    width: calc((100% - 40px) / 2);
    height: 60px;
  }
  .feature-exam-list li + li {
    margin-left: 0;
  }
  .feature-exam-list li:nth-child(n+3) {
    margin-top: 60px;
  }
}
@media (max-width: 768px) {
  section {
    padding: 3em 1em 5em;
  }
  .feature-exam-list {
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
  }
  .feature-exam-list li {
    width: calc(100% - 50px);
    height: 50px;
    margin: 0 auto !important;
  }
  .feature-exam-list li + li {
    margin-top: 50px !important;
  }
}
.feature-exam-list a {
  background-color: #fff;
  border: 1px solid #01a7ea;
  padding: 0.5rem 0.3rem;
  height: 100%;
  font-size: 1em;
  line-height: 1.2;
  color: #01a7ea;
  font-weight: bold;
  position: relative;
  border-radius: 4px;
  -webkit-transition: background-color 0.3s;
  transition: background-color 0.3s;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}

.feature-exam-list a:hover {
  background-color: #01a7ea;
  color: #fff;
}

.feature-exam-list a::before {
  content: "";
  width: 20px;
  height: 20px;
  border-radius: 2px;
  display: block;
  background-color: #01a7ea;
  position: absolute;
  bottom: 0;
  left: 15px;
  opacity: 0;
  -webkit-transition: 0.3s;
  transition: 0.3s;
  z-index: 10;
}

.feature-exam-list a:hover::before {
  bottom: -30px;
  opacity: 1;
}