div {
  visibility: hidden;
  position: fixed;
  min-width: 250px;
  margin-left: -125px;
  text-align: center;
  padding: 16px;
  background-color: #ff9600;
  color: #fff;
  z-index: 201;
  top: 30px;
  left: 50%;
}

.info {
  background-color: #0089bd;
}

.success {
  background-color: #61A85D;
}

.error {
  background-color: #ee4d3e;
}

.show {
  visibility: visible;
  -webkit-animation: fadein 0.5s, fadeout 0.5s 2.5s;
  animation: fadein 0.5s, fadeout 0.5s 2.5s;
}

@-webkit-keyframes fadein {
  from {top: 0; opacity: 0;}
  to {top: 30px; opacity: 1;}
}

@keyframes fadein {
  from {top: 0; opacity: 0;}
  to {top: 30px; opacity: 1;}
}

@-webkit-keyframes fadeout {
  from {top: 30px; opacity: 1;}
  to {top: 0; opacity: 0;}
}

@keyframes fadeout {
  from {top: 30px; opacity: 1;}
  to {top: 0; opacity: 0;}
}

div {
  visibility: hidden;
  position: fixed;
  min-width: 250px;
  margin-left: -125px;
  text-align: center;
  padding: 16px;
  background-color: #ff9600;
  color: #fff;
  z-index: 9999;
  top: 30px;
  left: 50%;
}

.info {
  background-color: #0089bd;
}

.success {
  background-color: #61A85D;
}

.error {
  background-color: #ee4d3e;
}

.show {
  visibility: visible;
  -webkit-animation: fadein 0.5s, fadeout 0.5s 2.5s;
  animation: fadein 0.5s, fadeout 0.5s 2.5s;
}

@-webkit-keyframes fadein {
  from {top: 0; opacity: 0;}
  to {top: 30px; opacity: 1;}
}

@keyframes fadein {
  from {top: 0; opacity: 0;}
  to {top: 30px; opacity: 1;}
}

@-webkit-keyframes fadeout {
  from {top: 30px; opacity: 1;}
  to {top: 0; opacity: 0;}
}

@keyframes fadeout {
  from {top: 30px; opacity: 1;}
  to {top: 0; opacity: 0;}
}

Update toastr z-index to be higher than header
Update toastr z-index to be higher than header
