#page_top{
  width: 400px;
  height: 80px;
border-radius: 20px;
  position: fixed;
  right: 20;
  bottom: 10;
  background: #51A6F4;
  opacity: 0.6;
text-align: center;
padding:20px 0;
}
#page_top a{
  position: relative;
  display: block;
  width: 400px;
  height: 80px;
  text-decoration: none;
text-align: center;
padding:20px 0;
}
#page_top a::before{
  font-family: 'M PLUS Rounded 1c', sans-serif;
   font-size: 40px;
  color: #fff;
  position: absolute;
  width: 25px;
  height: 25px;
  top: 0;
  bottom: 0;
  right: 0;
  left: 0;
  margin: auto;
  text-align: center;
padding:20px 0;
}

.form2{
font-size: 30px;
text-align: center;
color: #fff;
font-family: 'M PLUS Rounded 1c', sans-serif;
padding: 30px 30px 30px 30px;
}