div.whatsnew {
  margin: 10px 0;
  font-size: 100%;
  word-break: break-all;
  overflow: hidden;
}

div.whatsnew a {
  padding: 7px 0;
  display: block;
  text-decoration: none;
  box-shadow: none;
}

div.whatsnew a:hover {
  background-color: #f5f5f5;
  text-decoration: none;
  box-shadow: none;
}

div.whatsnew hr {
  margin: 0;
  padding: 0;
}

div.whatsnew .newmark {
  font-size: 74%;
  padding: 1px 5px;
  vertical-align: middle;
  color: White;
  background-color: #ff4500;
  border-radius: 3px;
}

div.whatsnew dl {
  margin: 0;
  padding: 0;
  border: 0;
}

div.whatsnew dt {
  margin: 0 0 0 0.3em;
  padding: 0;
  border: 0;
  color: Gray;
  font-weight: normal;
  white-space: nowrap;
}

div.whatsnew dd {
  margin: 0;
  padding: 0 2px;
}
div.whatsnew h4 {
  font-size: 1.4em;
  font-weight: bold;
  font-family: "Noto Serif JP", Sans-serif;
  position: relative;
  padding: 0.5rem 1.5rem;
  border-radius: 6px;
  background: #f4f4f4;
}

div.whatsnew h4:after {
  position: absolute;
  bottom: -9px;
  left: 1em;
  width: 0;
  height: 0;
  content: '';
  border-width: 10px 10px 0 10px;
  border-style: solid;
  border-color: #f4f4f4 transparent transparent transparent;
}

@media screen and (min-width:480px) {
  div.whatsnew dl {
    overflow: hidden;
  }
  div.whatsnew dt {
    float: left;
    width: 8.1em;
    overflow: hidden;
  }
  div.whatsnew dd {
    overflow: hidden;
  }
}