#back-to-top {
  position: fixed;
  z-index: 999;
  text-align: center;
  color: #606f89;
  cursor: pointer;
  border: 0;
  border-radius: 2px;
  line-height: 55px;
  text-decoration: none;
  font-size: 1.4em;
  padding: 0;
  margin: 0;
}

svg#Ebene_1{
    width: 15px;
    height: 15px;
    background-color: #cccccca8;
    padding: 10px;
    transition: all .2s linear;
    -moz-transition: all .2s linear;
    -webkit-transition: all .2s linear;
    -o-transition: all .2s linear;
}
svg#Ebene_1:hover {
    background-color: #88888894;
}
#back-to-top.show {
  opacity: 1;
}

#back-to-top.TopRight {
  top: 40px;
  right: 40px;
}

#back-to-top.CenterRight {
  top: 50%;
  right: 40px;
  margin-top: -27px;
}

#back-to-top.BottomRight {
  bottom: 50px;
  right: 10px;
}

#back-to-top.TopLeft {
  top: 40px;
  left: 40px;
}

#back-to-top.CenterLeft {
  top: 50%;
  left: 40px;
  margin-top: -27px;
}

#back-to-top.BottomLeft {
  bottom: 40px;
  left: 40px;
}

#back-to-top div {
  top: 50%;
  position: relative;
  transform: translateY(-50%);
}
#back-to-top:hover svg {
    transform: scale(1.1);
}