html,
body {
  background-color: #f9f6ee;
  margin: 5px 0px 5px 2px;
  padding: 5px 0px 5px 2px;
  overflow: hidden;
}

section {
  display: flex;
  flex-flow: column;
  height: calc(100vh - 20px);
}

.tab-content {
  flex: 1;
  overflow-y: scroll;
}

tr {
  cursor: default;
}

.myBtn {
  width: 70px;
}

#preloader {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 9999;
  overflow: hidden;
  height: 100%;
  width: 100%;
  background: #fff;

}

#preloader::before {
    content: "";
    position: fixed;
    top: calc(50% - 30px);
    left: calc(50% - 30px);
    border: 6px solid #f2f2f2;
    border-top: 6px solid #56829e;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    animation: animate-preloader 1s linear infinite;
}

@keyframes animate-preloader {
    to {
        transform: rotate(360deg);
    }
}