h1 {
  font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
  /* font-size: large; */
  font-style: normal;
  font-size: 1.5em;
}
body {
    margin: 0;
    padding: 0;
    background: #14495e;
    /* background-image: linear-gradient(to bottom right, rgb(19, 1, 100), rgb(0, 238, 255)); */
  }

button{
  background:rgb(138, 230, 233);
  box-shadow: 0 8px 16px 0 rgba(0,0,0,0.2), 0 6px 20px 0 rgba(0,0,0,0.19);
}

button:hover{
    background:cadetblue;
    box-shadow: 0 12px 16px 0 rgba(0,0,0,0.24), 0 17px 50px 0 rgba(0,0,0,0.19);
}

.hovertext {
  position: relative;
  color: yellowgreen;
  text-align: center;
  /* border-bottom: 1px dotted black; */
}

.hovertext:before {
  content: attr(data-hover);
  visibility: hidden;
  opacity: 0;
  width: 140px;
  /* background-color: transparent; */
  background-color: burlywood;
  color: rgb(8, 42, 231);
  text-align: center;
  border-radius: 0px;
  padding: 5px 0;
  transition: opacity 0.5s ease-in-out;

  position: absolute;
  z-index: 1;
  left: 0;
  top: 110%;
}

.hovertext:hover:before {
  opacity: 1;
  visibility: visible;
}

/* https://stackoverflow.com/questions/11683620/how-to-display-pop-up-text-on-mouse-hover */
.tooltip-wrap {
  position: relative;
}
.tooltip-wrap .tooltip-content {
  display: none;
  position: absolute;
  /* bottom: 50%; */
  /* left: 50%; */
  /* right: 5%; */
  background-color: transparent;
  padding: .5em;
}
.tooltip-wrap:hover .tooltip-content {
  display: inline-flex;
}