#main + ul {
  display: flex;
  flex-wrap: wrap;
  margin: -.35rem;
  list-style: none;
  padding: 0;
}

#main + ul > li {
  position: relative;
  padding: 1rem;
  width: calc(25% - .7rem);
  background: white;
  box-shadow: 0 4px 5px rgba(0, 0, 0, 0.14), 0 1px 10px rgba(0, 0, 0, 0.12), 0 2px 4px rgba(0, 0, 0, 0.2);
  border-radius: 4px;
  font-size: .7rem;
  color: #425D5A;
  margin: .35rem;
}

#main + ul > li a {
  color: #425D5A;
  font-size: 1.2rem;
  line-height: 1.4rem;
  display: inline-block;
  font-weight: bold;
  margin-bottom: .2rem;
}

#main + ul > li:hover {
  background: #FFFBF4;
}

#main + ul > li a:after {
  position: absolute;
  left: 0;
  top: 0;
  content: '';
  display: block;
  width: 100%;
  height: 100%;
}

.md-content__inner.md-content__inner.md-typeset.md-typeset {
  max-width: 100%;
  margin: 0 .8rem 1.2rem;
}

@media screen and (max-width: 1024px) {
  #main + ul > li {
    width: calc(50% - .7rem);
  }
}

@media screen and (max-width: 460px) {
  #main + ul > li {
    width: calc(100% - .7rem);
  }
}