.btn {
    font-size: 3vmin;
    padding: 0.75em 1.5em;
    background-color: #fff;
    border: 1px solid #bbb;
    color: #333;
    text-decoration: none;
    display: inline;
    border-radius: 4px;
    -webkit-transition: background-color 1s ease;
    -moz-transition: background-color 1s ease; 
}

.btn:hover {
  background-color: #ddd;
  -webkit-transition: background-color 1s ease;
  -moz-transition: background-color 1s ease;
  transition: background-color 1s ease;
}

.btn-small {
  padding: .75em 1em;
  font-size: 0.8em;
}

.modal-box {
  display: none;
  position: absolute;
  z-index: 1000;
  width: 40%;
  background: white;
  border-bottom: 1px solid #aaa;
  border-radius: 4px;
  box-shadow: 0 3px 9px rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(0, 0, 0, 0.1);
  background-clip: padding-box;
}
@media (min-width: 32em) {

.modal-box { width: 40%; }
}

.modal-box header,
.modal-box .modal-header {
  padding: 1em 1em;
  border-bottom: 1px solid #ddd;
}

.modal-box header h3,
.modal-box header h4,
.modal-box .modal-header h3,
.modal-box .modal-header h4 { margin: 0; }

.modal-box .modal-body { padding: .5em .5em; }

.modal-box footer,
.modal-box .modal-footer {
  padding: 1em;
  border-top: 1px solid #ddd;
  background: rgba(0, 0, 0, 0.02);
  text-align: right;
}

.modal-overlay {
  opacity: 0;
  filter: alpha(opacity=0);
  position: absolute;
  top: 0;
  left: 0;
  z-index: 900;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.3) !important;
}

a.close {
  line-height: 1;
  font-size: 1.5em;
  position: absolute;
  top: 5%;
  right: 2%;
  text-decoration: none;
  color: #000;
}

a.close:hover {
  color: #222;
  -webkit-transition: color 1s ease;
  -moz-transition: color 1s ease;
  transition: color 1s ease;
}

/*popover*/





/* The element to hover over */
.qs {
  background-color: #02bdda;
  border-radius: 16px;
  color: #e3fbff;
  cursor: default;
  display: inline-block;
  font-family: 'Helvetica',sans-serif;
  font-size: 18px;
  font-weight: bold;
  height: 30px;
  line-height: 30px;
  position: relative;
  text-align: center;
  width: 30px;
}
.qs .popover {
  background-color: rgba(0, 0, 0, 0.85);
  border-radius: 5px;
  bottom: 42px;
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.4);
  color: #fff;
  display: none;
  font-size: 12px;
  font-family: 'Helvetica',sans-serif;
  left: -95px;
  padding: 7px 10px;
  position: absolute;
  width: 200px;
  z-index: 4;
}
.qs .popover:before {
  border-top: 7px solid rgba(0, 0, 0, 0.85);
  border-right: 7px solid transparent;
  border-left: 7px solid transparent;
  bottom: -7px;
  content: '';
  display: block;
  left: 50%;
  margin-left: -7px;
  position: absolute;
}
.qs:hover .popover {
  display: block;
  -webkit-animation: fade-in .3s linear 1, move-up .3s linear 1;
  -moz-animation: fade-in .3s linear 1, move-up .3s linear 1;
  -ms-animation: fade-in .3s linear 1, move-up .3s linear 1;
}

@-webkit-keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@-moz-keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@-ms-keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@-webkit-keyframes move-up {
  from {
    bottom: 30px;
  }
  to {
    bottom: 42px;
  }
}
@-moz-keyframes move-up {
  from {
    bottom: 30px;
  }
  to {
    bottom: 42px;
  }
}
@-ms-keyframes move-up {
  from {
    bottom: 30px;
  }
  to {
    bottom: 42px;
  }
}