*,
*:before,
*:after {
  box-sizing: border-box;
}

.heading {
  float: center;
  text-align: center;
  color: white;
  padding: 5vh 0;
}

.box {
  display: flex;
}

.box-cell {
  width:100%;
  vertical-align: middle;
}

#decoration,
#decoration2,
#decoration3 {
  position: absolute;
  background-color: yellow;
  /* width: 420px; */
  height: 70px;
  opacity: 0;
  border-radius: 10px;
}

#decoration2 {
  background-color: magenta;
}

#decoration3 {
  background-color: cyan;
}

.gap {
  margin-left: 120px;
}

.top .leader li {
  background-color: yellow;
}

.leader {
  list-style-type: none;
  padding: 0;
  margin: 0 auto;
  width: 800px;
  height: 390px;
}
.leader li {
  background-color: #fff;
  border-radius: 5px;
  min-height: 90px;
  margin-bottom: 10px;
  overflow: hidden;
  box-shadow: 0 5px 5px rgba(0, 0, 0, 0.1);
}
.leader li .list_num {
  font-size: 22px;
  color: #66f;
  margin-left: 1rem;
  margin-right: 2.1rem;
  font-weight: bold;
  width: 20px;
  text-align: right;
  margin-left: 10px;
}
.college{
  font-size: 0.9rem;
  font-weight: 400;
  margin-top: 0.25rem;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 1; /* number of lines to show */
          line-clamp: 1; 
  -webkit-box-orient: vertical;
}

.leader li h2 {
  display: block;
  margin: 0;
  font-size: 18px;
  line-height: 40px;
  font-weight: 300;
  margin-top: 15px;
  padding-right: 20px;
}
.leader li h2 .number {
  font-size: 1.25rem;
  color: rgba(0, 0, 0, 0.65);
  transition: color 0.3s;
}
.leader li img {
  width: 40px;
  height: 40px;
  float: left;
  margin: 15px 20px;
  margin-left: 0;
  border-radius: 100%;
}

@media only screen and (max-width: 800px) {
  .leader {
    width: 95vw;
    display: inline;
  }
  .leader li .list_num {
    margin-right: 1.5rem;
  }
  .box {
    width: 100%;
    margin-top: 10vh;
    padding: 0 3vw;
  }

  .gap {
    margin-left: 20px;
  }
}