html {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 12px;
}

body {
  background:#000;
  color: #777;
  padding: 10px 30px 30px;
}

.row {
  display:inline-flex;
  width:auto;
  position:relative;
}


.group {
  display:inline-flex;
  align-items: flex-start;
  justify-content: center;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 6px;
  padding: 20px 10px 10px;
  margin: 15px 5px 5px;
  position: relative;
  min-width: 50px;
}

.group>div:not(.grouplabel) {
  max-width: 50px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  /* align-content: flex-end; */
  align-items: center;
  min-height: 100%;
}

.grouplabel {
  position:absolute;
  display:inline-block;
  left: 50%;
  top: 0;
  background: #000;
  transform: translate(-50%,-50%);
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 6px;
  padding: 2px 5px;
  z-index: 1000;
  text-transform: uppercase;

}

.lvl {
  font-size: 16px;
  display:inline-block;
  min-width: 50px;
  line-height: 1;
}

.center {
  text-align:center;
  align-items:center;
  align-content:center;
}

#device {
  text-transform: uppercase;
  font-size: 12px;
  display:inline-block;
}

.sliderwrap {
  height: 120px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  max-width: 50px;
}

input[type="range"].slider {
  -webkit-appearance: none;
  appearance: none;
  writing-mode: vertical-lr;
  width: 10px;
  height: 100px;
  background: #222;
  outline: none;
  opacity: 0.7;
  -webkit-transition: .2s;
  transition: opacity .2s;
  border:1px solid #707070;
/*  overflow:visible;*/
  transform: rotate(180deg);

}

/* slider track Chromium */
input[type="range"]::-webkit-slider-runnable-track {
  background-color: #222222;
  border-radius: 3px;
  width: 10px;
}

/* slider thumb Chromium */
input[type="range"].slider::-webkit-slider-thumb {
  -webkit-appearance: none; /* Override default look */
  appearance: none;
  margin-top: 0; /* Centers thumb on the track */
  background-color: #808080;
  border-radius: 3px;
  width: 40px;
  height: 10px;
  margin-left: -15px;
}

input[type="range"].slider:focus::-webkit-slider-thumb {
  outline: 1px solid #808080;
  outline-offset: 2px;
}

.slider:hover, .slider:focus {
  opacity: 1;
}


/* slider track FF */
input[type="range"]::-moz-range-track {
  background-color: #222;
  border-radius: 3px;
  width: 10px;
}

/* slider thumb FF */

input[type="range"]::-moz-range-thumb {
  background-color: #808080;
  border: none; /*Removes extra border that FF applies*/
  border-radius: 3px;
  width: 40px;
  height: 10px;
  margin-top: -10px;
}

input[type="range"]:focus::-moz-range-thumb{
  outline: 1px solid #808080;
  outline-offset: 2px;
}

.wf1icon, .wf2icon {
  opacity: 0.7;
  display: none;
  height: 14px;
  min-width: 50px;
}

.wf1icon.current, .wf2icon.current {
  display: block;
}


#startup {
  position:absolute; 
  inset:0;
  background: rgba(0,0,0,0.5);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor:pointer;
}

#startup span {
  display:inline-block;
  background: #fff;
  padding: 5px 15px;
  border: 0 none;
  border-radius: 4px;
  transition: padding 0.25s;
}
#startup:hover span {
  padding: 7px 17px;
  transition: padding 0.25s;
}

h1, h2, h3, p, li {
  line-height: 1.5;
  margin-top:0;
  margin-bottom: 0.5rem;
  padding-top:0;
}

details {
    max-width:760px;
    font-size:14px;
}

details summary {
  cursor:pointer;
  border-radius: 6px;
  padding:3px;
}

details summary:hover {
  cursor:pointer;
  background:#333;
}

details h2 {
  margin-top:1.5rem;
}

details>div{
  padding: 5px 20px 20px;
  background:#222;
  border-radius: 6px;
}