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;
}


ul, li {list-style-type: none;}


/* Preloader */
#preloader {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 9999;
  overflow: hidden;
  background: lightblue;
}

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

@-webkit-keyframes animate-preloader {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

@keyframes animate-preloader {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/*  Loader */
.lds-dual-ring.hidden {
  display: none;
}

.overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: transparent;
  z-index: 9999;
  opacity: 1;
  transition: all 0.5s;
}

.lds-dual-ring {
  display: flex;
  width: 100%;
  height: 100vh;
  justify-content: center;
  align-items: center;
}
.lds-dual-ring:after {
  content: " ";
  display: block;
  width: 64px;
  height: 64px;
  margin: 5% auto;
  border-radius: 50%;
  border: 6px solid blue;
  border-color: blue transparent darkgrey transparent;
  animation: lds-dual-ring 1.2s linear infinite;
}
@keyframes lds-dual-ring {
  0% {
      transform: rotate(0deg);
  }
  100% {
      transform: rotate(360deg);
  }
}