.btn,
a.btn,
button.btn {
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1.5;
  position: relative;
  display: inline-block;
  padding: 1rem 4rem;
  margin: 1rem;
  cursor: pointer;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  -webkit-transition: all 0.3s;
  transition: all 0.3s;
  text-align: center;
  vertical-align: middle;
  text-decoration: none;
  letter-spacing: 0.1em;
  color: #212529;
  border-radius: 0.5rem;
  box-sizing:border-box;
  font-size:130%;
  width:80%;
  max-width:500px;
}

.btn--link,
a.btn--link {
  color: #fff;

    background-image: linear-gradient(315deg, #0b6a9d 0%, #0f9ceb 74%);
}
.btn--link:hover,
a.btn--link:hover {
  color: #fff;
    background-image: linear-gradient(315deg, #009999 0%, #00ccff 74%);
}

@media screen and (max-width:920px){
.btn_pdfsp{
 display:block;
}
a.btn_pdf {
 display:block;
 width:100px;
}
}

@media screen and (max-width:560px){

.btn,
a.btn,
button.btn {
  width:95%;

}

}