.article-button {
  display: inline-block;
  padding: 0.5em 1.0em;
  color: light-dark(var(--light-bg), var(--dark-bg));
  background: light-dark(var(--dark-active), var(--light-active));
  background-image: linear-gradient(to right, rgba(0, 0, 0, 0), rgba(250, 250, 250, .2));
  border: 2px solid light-dark(var(--light-hover), var(--light-menu));
  border-radius: 5px;
  width: 120px;
  height: 50px;
  font-family: sans-serif;
  font-size: 18px;
  cursor: pointer;
  margin: 10px;
  -webkit-transition: background 0.3s;
  -moz-transition: background 0.3s;
  transition: background 0.3s ease, color 0.3s ease;
}

.article-button:hover {
  background: light-dark(var(--light-hover), var(--light-menu));
  background-image: linear-gradient(to left, rgba(0, 0, 0, 0), rgba(250, 250, 250, .2));
  border: 2px solid light-dark(var(--dark-active), var(--light-active));
  color: white;
}

.article-button:active,
.article-button.is-checked {
  background: light-dark(var(--light-hover), var(--light-menu));
  background-image: linear-gradient(to right, rgba(0, 0, 0, 0), rgba(250, 250, 250, .2));
  color: light-dark(var(--light-active), var(--dark-bg));
  outline: none;
}

.article-button-group {
  margin: 20px 0;
  text-align: center;
}

.article-button-group:after {
  content: '';
  display: block;
  clear: both;
}

.article-button-group {
  margin: 20px 0;
  text-align: center;
}

.article-button-group:after {
  content: '';
  display: block;
  clear: both;
}

.article-img-responsive {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 20px;
  background: transparent;
  overflow: hidden;
}

.grid article {
  background-color: transparent;
  display: block;
  float: left;
  margin: 1%;
  width: 23%;
  overflow: hidden;
}