<div class="divloading">
            <div id="divloadingcm" class="divloadinghc divloadingvc addloading"></div>
</div>

.divloading {
height:100%;
width:100%;
}

.divloadinghc {
width:300px;
left:0; right:0;
margin-left:auto;
margin-right:auto;
}
.divloadingvc {
z-index: 1000;
height:40px;
top: 0;
bottom:0;
margin-top:auto;
margin-bottom:auto;
color:#FF0000;
text-align: center;
font-weight: bold;
            font-size: 32px;
}

.addloading {
  display: inline-block;
  width : 35px;
  height: 35px;
  border: 5px solid rgba(0,0,0,.3);
  border-radius: 50%;
  border-top-color: #3366FF;
  animation: spin 2s ease-in-out infinite;
  -webkit-animation: spin 1s ease-in-out infinite;
}