JSFiddle - React, Tailwind, and code Playground

by Michael Prosser

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<div class="thermo">
  <div class="thermometer">
    <div class="thermovalues">
      <span>120</span>
      <span>110</span>
      <span>100</span>
      <span>90</span>
      <span>80</span>
      <span>70</span>
      <span>60</span>
      <span>50</span>
      <span>40</span>
      <span>30</span>
      <span>20</span>
      <span>10</span>
      <span>0</span>
      <span>-10</span>
      <span>-20</span>
      <span>-30</span>
      <span>-40</span>
    </div>
    <div class="thermobar" data-degrees="96">
      <div></div>
    </div>
  </div>
</div>

CSS

.thermo{
  position: fixed;
  left: 0px;
  top: 0px;
  bottom: 0px;
  width: 500px;
  background-color: #000;
}
.thermo > .thermometer{
  width: 200px;
  height: 400px;
  font-size: 9px;
  color: #fff;
  font-family: "helvetica", serif;
  position: absolute;
  display: block;
  left: 50%;
  top: 50%;
  transform: translateX(-50%) translateY(-50%);
}
.thermo > .thermometer > .thermovalues{
  position: absolute;
  left: 50%;
  margin-left: -40px;
  top: 10px;
}
.thermo > .thermometer > .thermovalues span{
  display: block;
  text-align: right;
  margin: 0px;
  line-height: 20px;
}
.thermo > .thermometer > .thermovalues span:after{
  display: inline;
  content: "-";
}
.thermo > .thermometer > .thermobar{
  border: solid 1px #fff;
  height: 340px;
  top: 10px;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 14px;
  border-bottom: none;
  -webkit-border-top-left-radius: 7px;
  -webkit-border-top-right-radius: 7px;
  -moz-border-radius-topleft: 7px;
  -moz-border-radius-topright: 7px;
  border-top-left-radius: 7px;
  border-top-right-radius: 7px;
  background-color: #333;
  
}
.thermo > .thermometer > .thermobar:before{
  display: block;
  -webkit-border-radius: 50%;
  -moz-border-radius: 50%;
  border-radius: 50%;
  border: solid 1px #fff;
  height: 30px;
  bottom: -30px;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  content: attr(data-degrees);
  background-color: #1f66b1;
  line-height: 30px;
  text-align: center;
  font-weight: bold;
  font-size: 17px;
}

.thermo > .thermometer > .thermobar:after{
  display: block;
  height: 30px;
  bottom: -22px;
  position: absolute;
  left: 50%;
  margin-left: 20px;
  transform: translateX(-50%);
  width: 30px;
  content: "°";
  line-height: 30px;
  text-align: center;
  font-weight: bold;
  font-size: 17px;
}

.thermo > .thermometer > .thermobar > div{
  position: absolute;
  bottom: 0px;
  left: 0px;
  right: 0px;
  height: 330px;
  background-color: #1f66b1;
 ...

JavaScript

function setThermometer(v){

	var offset = 10;
  
	var p =  (v * 2) + 90;

	$('.thermometer > .thermobar > div').css('height','' + p + 'px')

}

setThermometer(120);

setTimeout(function(){

	setThermometer(80);
  
  setTimeout(function(){

    setThermometer(90);

  },5000);

},5000);