body {
  width: auto;
  background-color: #f6f6f6!important;
}
.spinner-border {
  position: absolute; 
  margin: auto;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  width: 100px;
  height: 100px;
  
}

.load-data {
  position: fixed;
  top: 0;
  left: 0;
  background: white;
  width: 100vw;
  height: 100vh;
  z-index: 9;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
}