#page_top{
 /* content: url(top_btn.png);*/
  width: 50px;
  height: 50px;
  position: fixed;
  right: 0;
  bottom: 65;
  opacity: 0.9;
  /*border-radius: 50%;*/
  right: 14px;
  bottom: 70px;
  z-index: 100;
  }
#page_top a{
  position: relative;
  display: block;
  width: 50px;
  height: 50px;
  text-decoration: none;
    z-index: 100;
}
#page_top a::before{
  content: '';
    display: inline-block;
    background-image: url(top_btn.png);
    background-repeat: no-repeat;
    width: 50px;
    height: 50px;
    /* position: fixed; */
    right: 0;
    bottom: 65;
    /* background: #ef3f40!important; */
    opacity: 0.9;
    /* border-radius: 50%; */
    right: -7px;
    bottom: 53px;
    background-size: contain;
    width: 100%;
    height: 400px;
}
@media screen and (min-width:951px) and ( max-width:1198px) {
/*ipad Pro*/
#page_top {
    width: 70px;
    height: 70px;
    z-index: 100;
    margin-right: 14px;
    right: 0;
    bottom: 70px;
}
#page_top a::before {
    height: 50px;
    font-size: 34px;

}
  #page_top a {
    position: relative;
    display: block;
    width: 70px;
    margin-top: 10px;
    text-decoration: none;
}

}
@media screen and (min-width:750px) and ( max-width:950px) {
/*ipad_mini*/
#page_top {
    width: 70px;
    height: 70px;
    z-index: 100;
    right: 0;
    bottom: 70px;
}
#page_top a::before {
    height: 50px;
    font-size: 34px;

    }
    #page_top a {
    position: relative;
    display: block;
    width: 70px;
    margin-top: 10px;
    text-decoration: none;
}
}

@media screen and (min-width: 320px) and (max-width: 350px){
#page_top {
   z-index: 100;
   right: 0;
  bottom: 70px;
}
}
@media screen and (min-width: 351px) and (max-width: 749px){
#page_top {
    z-index: 100;
    right: 5px;
    bottom: 63px;
}
}