.slider--h {
  display: flex;
  align-items: center;
}
.slider--h .slider--label + * {
  margin-left: 1em;
  flex: 1;
}

.slider--v {
  display: flex;
  flex-direction: column;
  justify-content: center;
  margin-bottom: 5px;
}
.slider--v .slider--label + * {
  margin-top: 15px;
}

.slider {
  --slider-base: #d8d8d8;
  --slider-radius: 1em;
  --slider-handle-size: 0.7em;
  --p: 0%;
  width: 100%;
}
.slider--input {
  position: relative;
  line-height: 0;
  border-radius: var(--slider-radius);
  background: red;
  background-image: linear-gradient(275deg, #1aff00 0, red 100%);
}
.slider--input::before {
  content: '';
  position: absolute;
  pointer-events: none;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  margin-right: -1px;
  border-radius: var(--slider-radius);
  background: linear-gradient(
    to right,
    transparent 0,
    transparent calc(var(--p) + var(--slider-handle-size) / 2),
    var(--slider-base) var(--p),
    var(--slider-base) 100%
  );
}
.slider--input input {
  position: realtive;
  z-index: 1;
  width: 100%;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  font: inherit;
  background: transparent;
  border: 0;
  margin: 0;
  padding: 0;
}
.slider--input input::-webkit-slider-runnable-track {
  background: transparent;
  padding: calc(var(--slider-handle-size) / 1.6) 0;
  margin: 0 calc(var(--slider-handle-size) / 2 * -1);
  cursor: pointer;
}
.slider--input input::-moz-range-track {
  background: transparent;
  padding: calc(var(--slider-handle-size) / 1.6) 0;
  margin: 0 calc(var(--slider-handle-size) / 2 * -1);
  cursor: pointer;
}
.slider--input input::-webkit-slider-thumb {
  position: relative;
  -webkit-appearance: none;
  appearance: none;
  box-shadow: 0 0 0 0.2em #444;
  height: calc(var(--slider-handle-size) * 2);
  width: var(--slider-handle-size);
  margin: calc(var(--slider-handle-size) * -1) 0;
  border-radius: var(--slider-radius, 1em);
  background: transparent;
  cursor: -webkit-grab;
  cursor: grab;
}
.slider--input input::-moz-range-thumb {
  position: relative;
  -moz-appearance: none;
  appearance: none;
  box-shadow: 0 0 0 0.2em #444;
  height: calc(var(--slider-handle-size) * 2);
  width: var(--slider-handle-size);
  margin: calc(var(--slider-handle-size) * -1) 0;
  border-radius: var(--slider-radius, 1em);
  background: transparent;
  cursor: grab;
}
.slider--input input:focus {
  outline: none;
}
.slider--input input:active::-webkit-slider-thumb {
  position: relative;
  -webkit-appearance: none;
  appearance: none;
  box-shadow: 0 0 0 0.2em #444;
  height: calc(var(--slider-handle-size) * 2);
  width: var(--slider-handle-size);
  margin: calc(var(--slider-handle-size) * -1) 0;
  border-radius: var(--slider-radius, 1em);
  background: transparent;
  cursor: -webkit-grabbing;
  cursor: grabbing;
}
.slider--input input:active::-moz-range-thumb {
  position: relative;
  -moz-appearance: none;
  appearance: none;
  box-shadow: 0 0 0 0.2em #444;
  height: calc(var(--slider-handle-size) * 2);
  width: var(--slider-handle-size);
  margin: calc(var(--slider-handle-size) * -1) 0;
  border-radius: var(--slider-radius, 1em);
  background: transparent;
  cursor: grabbing;
}

output {
  font-size: 12px;
  opacity: 0.5;
}

#StrengthDisplay {
  float: right;
  font-size: 12px;
  margin-top: 3px;
  font-weight: bold;
}