html, body {
  width: 100%;
  height: 100%;
}
body {
  margin: 0;
  font-size: 0;
  background-color: #ddd;
  display: flex;
  font-family: 'Questrial', sans-serif;
}
.inputs-wrapper {
  flex: none;
  background-color: #eee;
  width: 200px;
  box-sizing: border-box;
  padding: 20px;
  height: 100%;
  overflow: auto;
}
.space-wrapper {
  margin-top: 20px;
}
.space-heading {
  margin: 0;
  display: flex;
  margin-bottom: 5px;
}
.space-heading .label {
  font-size: 16px;
  color: rgba(0, 0, 0, 0.9);
}
.space-heading .line {
  flex: auto;
  border-top: 1px solid rgba(0, 0, 0, 0.2);
  margin-top: 7px;
  margin-left: 10px;
  margin-right: 10px;
}
.space-input {
  margin: 0;
  margin-bottom: 5px;
  display: flex;
  align-items: center;
}
.space-input label {
  flex: auto;
  font-size: 16px;
  color: rgba(0, 0, 0, 0.7);
}
.space-input input {
  border: none;
  background: none;
  border-radius: 5px;
  background-color: rgba(0, 0, 0, 0.05);
  font: inherit;
  color: rgba(0, 0, 0, 0.8);
  padding: 5px;
  font-size: 16px;
  text-align: right;
  width: 4ch;
  cursor: pointer;
}
.space-input input:focus {
  outline: none;
  cursor: auto;
  background-color: rgba(0, 0, 0, 0.1);
}
@media (max-width: 550px) {

  body {
    flex-direction: column;
  }

  .inputs-wrapper {
    width: auto;
    height: 200px;
  }

}
canvas {
  height: 100%;
  border-radius: 5px;
}
.selection-wrapper {
  flex: auto;
  display: flex;
  align-items: center;
  justify-content: center;
}
.canvas-wrapper {
  position: relative;
  display: inline-block;
  height: 300px;
}
#slider-wrapper {
  margin-left: 10px;
}
#slider-canvas {
  width: 15px;
  border-radius: 15px;
}
.box-handle {
  position: absolute;
  box-sizing: border-box;
  width: 10px;
  height: 10px;
  border: 2px solid rgba(255, 255, 255, 0.8);
  border-radius: 50%;
  margin: -5px;
  z-index: 1;
  left: var(--x);
  top: var(--y);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2), inset 0 1px 3px rgba(0, 0, 0, 0.2);
}
.slider-handle {
  position: absolute;
  background-color: white;
  width: 15px;
  height: 15px;
  top: var(--y);
  margin: -7.5px;
  transform: rotate(45deg);
  box-shadow: 1px 1px 3px rgba(0, 0, 0, 0.2);
}