.doi_1 {
  text-align: center;
  position: relative;
  top: 10px;
  left: 10%;
  cursor: pointer;
}
.doi_1 {
  font-family: 'Hammersmith One', sans-serif;
  font-size: 20px;
  color: white;
  text-align: center;
  border-radius: 8px;
  font-size: 21px;
  background: #42A5F6;
  padding: 10px 20px 10px 20px;
  border: none;
}
.doi_1:hover {
  background: #0090FF;
  color: black;
  text-decoration: none;
}


@media only screen and (max-width: 800px) {


.doi_1 {
  text-align: center;
  position: relative;
  top: 10px;
  left: 10%;
  cursor: pointer;
}
.doi_1 {
  font-family: 'Hammersmith One', sans-serif;
  font-size: 20px;
  color: white;
  text-align: center;
  border-radius: 8px;
  font-size: 21px;
  background: #42A5F6;
  padding: 10px 20px 10px 20px;
  border: none;
}
.doi_1:hover {
  background: #0090FF;
  color: black;
}

}



.p{
  font-weight:bold;
}
.p1{
 height: 20px;
        width: 20px;
}



.ui_alb {

   color: blue;
   font-size: 20px;
   padding: 10px;
   text-align: center;

}


.ui_rd {

   color: red;
   font-size: 20px;
   padding: 10px;
   text-align: center;

}

.doi {
  text-align: center;
  position: relative;
  top: 50px;
  left: 300px;
}
.doi {
  font-family: 'Hammersmith One', sans-serif;
  font-size: 20px;
  color: white;
  text-align: center;
  border-radius: 8px;
  font-size: 21px;
  background: #42A5F6;
  padding: 10px 20px 10px 20px;
  border: none;
}
.doi:hover {
  background: #0090FF;
  color: black;
}

@media only screen and (max-width: 800px) {

.doi {
  text-align: center;
  position: relative;
  top: 100px;
  left: 100px;
}
.doi {
  font-family: 'Hammersmith One', sans-serif;
  font-size: 20px;
  color: white;
  text-align: center;
  border-radius: 8px;
  font-size: 21px;
  background: #42A5F6;
  padding: 10px 20px 10px 20px;
  border: none;
}
.doi:hover {
  background: #0090FF;
  color: black;
}

}





footer_1{

  margin: 0;
  padding: 10px;
  color: #d9d9d9;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;


  position: fixed;
  bottom: 0px;
  right:0px;
  width: 100%;
  background: #111;
}

.bottom_1 center{
  padding: 5px;
  font-size: 0.9375rem;
  background: #151515;
}

@media screen and (max-width: 900px) {
  footer_1{
    position: fixed;
    bottom: 0px;
  }
 
}