.infosubttl {
				font-size:1.3em; background: linear-gradient(transparent 60%, yellow 0%);display: inline-block;
    margin-top: 2em;
            }
            @media screen and (max-width: 768px) {
              .infosubttl {
				  display:inline;
              }
            }
.linkbtn1 {
margin-top:2.5em;
  display: block;
  position: relative;
  background: #E83618;
  border: 2px solid #E83618;
  padding: 1em 2em;
  font-weight: bold;
  color: #fff !important;
  text-decoration: none !important;
  text-align: center;
  transition-duration: 0.3s;
}

.linkbtn1:after {
  content: '';
  width: 8px;
  height: 8px;
  border: 0;
  border-top: 2px solid #fff; /* 矢印の色 */
  border-right: 2px solid #fff; /* 矢印の色 */
  transform: rotate(45deg);
  position: absolute;
  top: 50%;
  right: 25px;
  margin-top: -6px;
}

/* マウスオーバーした際のデザイン */
.linkbtn1:hover {
  background: #fc4426; /* 背景色 */
}