popup.css

/* General */
#main-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-family: 'Roboto', sans-serif;
}

#num-display {
  text-align: center;
  font-size: 1.2em;
}

#num-display p {
  font-size: 1.5em;
}

#settings-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1em;
  border: 1px solid #d3d3d3;
  user-select: none;
}

#on-switch-container {
  margin-top: 1em;
}

/* Unit Switch Button */

.unit-switch {
  display: flex;
  overflow: hidden;
  margin: 1em 0 1em 0;
}

.unit-switch input {
	position: absolute !important;
	clip: rect(0, 0, 0, 0);
	height: 1px;
	width: 1px;
  border: 0;
}

.unit-switch label {
	background-color: #ffffff;
	color: rgba(0, 0, 0, 0.6);
  font-size: 1em;
	text-align: center;
	padding: 8px 16px;
	border: 1px solid rgba(0, 0, 0, 0.2);
  transition: all 0.1s ease-in-out;
  
}

.unit-switch input:checked + label {
  background-color: #2196F3;
  color: white;
	box-shadow: none;
}

.unit-switch label:first-of-type {
	border-radius: 4px 0 0 4px;
}

.unit-switch label:last-of-type {
	border-radius: 0 4px 4px 0;
}

/* On/Off Switch */

.on-switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 34px;
}

.on-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #ccc;
  transition: .4s;
  border-radius: 35px;
}

.toggle:before {
  position: absolute;
  content: "";
  height: 26px;
  width: 26px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  -webkit-transition: .4s;
  transition: .4s;
  border-radius: 50%;
}

input:checked + .toggle {
  background-color: #2196F3;
}

input:focus + .toggle {
  box-shadow: 0 0 1px #2196F3;
}

input:checked + .toggle:before {
  -webkit-transform: translateX(26px);
  -ms-transform: translateX(26px);
  transform: translateX(26px);
}

#on-switch-container {
  display: flex;
  justify-content: space-around;
  align-items: center;
}

#on-switch-label {
  margin-left: 1em;
  font-size: 1.5em;
}

/* Prevent interaction with settings while running */
.disabled {
  pointer-events: none;
}

.disabled input {
  opacity: 50%;
}

.disabled .unit-switch {
  opacity: 50%;
}