.overlay,
.loading-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.overlay {
  z-index: 1010;
  background: rgba(255, 255, 255, 1.0); 
  text-align: center;

    
}
.overlay.dark {
  background: rgba(0, 0, 0, 0.5);
}
.loading-img {
  z-index: 1020;
  background: transparent url('images/ajax-loader.gif') 50% 50% no-repeat;

}
 
.content{ margin-top: 15px; }

.lined{ 
  width: 100%;
}

.tooltip {
  position: relative;
  display: inline-block;
}

.tooltip .tooltiptext {
  visibility: hidden;
  width: 140px;
  background-color: #555;
  color: #fff;
  text-align: center;
  border-radius: 6px;
  padding: 5px;
  position: absolute;
  z-index: 1;
  bottom: 150%;
  left: 50%;
  margin-left: -75px;
  opacity: 0;
  transition: opacity 0.3s;
}

.tooltip .tooltiptext::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -5px;
  border-width: 5px;
  border-style: solid;
  border-color: #555 transparent transparent transparent;
}

.tooltip:hover .tooltiptext {
  visibility: visible;
  opacity: 1;
}

.btn{
  min-width: 120px;
  margin: 2px;
  margin-left: 0px;
}