JSFiddle - React, Tailwind, and code Playground
HTML
<input type="number" id="jauge" value="0"/>
<div id="contenant">
<div id="contenu"></div>
<span id="pourcentage">0 %</span>
</div>
CSS
body {
margin: 20px;
text-align:center;
}
#contenant {
border: 5px ridge #333;
box-shadow: 0 0 30px #ccc;
height: 500px;
width:100px;
margin: 30px auto;
position: relative;
}
#contenu {
position: absolute;
bottom: 0;
left:0;
width: 100px;
background:red;
transition: all 1s ease;
-webkit-transition: all 1s ease;
-moz-transition: all 1s ease;
}
#pourcentage {
position: absolute;
top:225px;
left: 0;
color:black;
width: 100px;
text-align:center;
font-size: 24px;
font-weight: bold;
}
JavaScript
document.getElementById("jauge").onchange = function(){
//valeur saisie
var niveau = this.value;
var contenant = document.getElementById("contenant");
var contenu = document.getElementById("contenu");
if(niveau>100 || niveau <0){
alert('Le niveau doit être compris entre 0 et 100!');
this.value=0;
return;
}
contenu.style.height = parseInt(niveau/100 * contenant.clientHeight)+"px";
var total = niveau * pourcentage / 100;
document.getElementById("pourcentage").innerText = parseInt(niveau)+"%";
}