.img-fluid-overwrite {
    margin: 0 auto;
}

#page_top{
  width: 50px;
  height: 50px;
  position: fixed;
  right: 0;
  bottom: 0;
  background: #40739f;
  color: #ffffff;
  opacity: 0.6;
}
#page_top a{
  position: relative;
  display: block;
  width: 50px;
  height: 50px;
  text-decoration: none;
  color: #ffffff;
}
#page_top a::before{	
  font-size: 25px;
  color: #ffffff;
  position: absolute;
  width: 25px;
  height: 25px;
  top: 0;
  bottom: 0;
  right: 0;
  left: 0;
  margin: auto;
  text-align: center;
}  
h4 h3 {
 font-family: 'Zen Kaku Gothic New', sans-serif;
}