footer {
  background: #333333;
   position: relative;
}
.footer {
  max-width: 1300px;
  margin: 0 auto;
  display: flex;
  padding: 24px 0;
  margin-top: 50px;
  flex-direction: column;
  align-items: center;
}

.footer p {
 font-family:Arial, Arial;
  font-weight: bold;
  font-size: 16px;
  color: #ffffff;
  line-height: 20px;
}
.footer p span {
  margin: 0 12px;
}

.er {
 font-family: Arial, Arial;
  font-weight: bold;
  font-size: 16px;
  color: #ffffff;
  line-height: 20px;
  margin-top: 24px;
}
.back-to-top {
    border: none;
    background: none;
    position: fixed;
    right: 100px;
    font-size: 24px;
    line-height: 40px;
    border-radius: 50%;
    bottom: 200px;
    display: none;
    z-index: 10;
    cursor: pointer;
}
.icon-back:before {
    font-size: 40px;
    border-radius: 0px 0px 0px 0px;
    background-color: #fff;
    color:#4F218D;
    border-radius: 50%;
    -webkit-border-radius: 50%;
    -moz-border-radius: 50%;
    -ms-border-radius: 50%;
    -o-border-radius: 50%;
}
@media (max-width: 760px) {
  .footer p {
    font-size: 12px;
    line-height: 16px;
  }

  .er {
    font-size: 12px;
    line-height: 16px;
    margin-top: 12px;
  }
  .footer p span {
    margin: 0 8px;
  }
  .icon-back:before {
    font-size: 30px;
  }
  
}