body {
  margin:0;
  padding:0;
  overflow: hidden;
}
canvas {
  margin:auto;
}

#tips-container{
  display: none;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  padding: 1rem;
}

#tips{
  border: 5px solid black;
  background: white;
  padding: 1rem;
  color: black;
  margin: auto;
  font-family: Courier, monospace;
}

#help{
  display: none;
  margin: 0;
  position: absolute;
  bottom: 10px;
  left: 10px;
  z-index: 100;
  font-size: 1.5rem;
  color: black;
  background: white;
  padding: 0.25rem;
  border: 2px solid black;
}

#help:hover{
  cursor: pointer;
}

#x{
  position: absolute;
  right: .25rem;
  top: .25rem;
  background: white;
  border: 2px solid black;
  color: black;
  padding: .5rem;
}

#x:hover{
  cursor: pointer;
}

.my-2{
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
}

.ta-r{
  text-align: right;
}

.tip-text{
  padding-left: 1rem;
}

.center{
  text-align:center;
}

.icon{
  width: 2rem;
  height: 2rem;
  padding-right: .25rem;
}

.tip{
  margin-top: 0;
}

.ui-state-default{
  background-color: black !important;
  border-color: black !important;
}

.fr{
  margin: 0;
  border: 5px solid black;
  font-size: 2rem;
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 100;
  color: black;
  background: white;
  padding: 1rem;
}

p.reference{
  margin: 0;
  position: absolute;
  bottom: 10px;
  right: 10px;
  z-index: 100;
  font-size: 0.75rem;
  border: 2px solid black;
  color: black;
  background: white;
  padding: 0.5rem;
}