html,
body {
  padding: 0px;
  margin: 0px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: url("../images/tank_bg.jpg");
}

body * {
  font-family: "Roboto", sans-serif;
}

#src {
  display: none;
  filter: blur(5px);
}

.button {
  margin: 2%;
  /* width: 200px; */
  height: 50px;
  border: solid rgba(255, 255, 255, 0.3) 1px;
  background: transparent;
  transition: all 1s;
  display: flex;
  align-items: center;
}

.button span {
  text-align: center;
  /* line-height: 50px; */
  display: block;

  width: 200px;
  color: white;
  opacity: 0.7;
}

#main .button:hover {
  background: rgba(27, 228, 20, 0.226);
  cursor: pointer;
}

.hideOnMenu {
  display: none;
}

.tooltip {
  position: relative;
}

.tooltip .tooltiptext {
  visibility: hidden;
  width: 120px;
  background-color: #555;
  color: #fff;
  text-align: center;
  border-radius: 6px;
  padding: 5px 0;
  position: absolute;
  z-index: 1;
  bottom: 125%;
  left: 50%;
  margin-left: -60px;
  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;
}

#myCanvas {
  height: 100vh;
  width: 100vw;
}