.pagetop {
text-align: right;
margin: 0 auto;
display:block;
}

.pagetopsp {
display:none;
}

 
.pagetop a {
  display: inline-block;
}

/*サンプル2*/
.pagetop2 {
  position: fixed;
  bottom: 24px;
  right: 24px;
  margin: 0 auto;
  z-index: 200;
}
 
.pagetop2 a {
  display: table-cell;
  width: 6em;
  height: 6em;
  text-align: center;
  vertical-align: middle;
  color: #fff;
  font-size: 1.2em;
  line-height: 1;
  border-radius: 50%;
  background: #000;
  behavior: url(PIE.htc); 
}
 
/*サンプル3*/
.pagetop3 {
  position: fixed;
  bottom: -270px;
  right: 0px;
  margin: 0 auto;
  z-index: 200;
  visibility: hidden;
  -webkit-transition: bottom 0.4s linear;
  transition: bottom 0.4s linear;
}
 
.pagetop3.visible {
  bottom: 0px;
}
 
.pagetop3 a {
  display: table-cell;
  width: 6em;
  height: 6em;
  text-align: center;
  vertical-align: middle;
  behavior: url(PIE.htc); 
}