<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<div class="container">
<div class="range-wrap">
<!-- Ticks (lines) over slider -->
<div class="ticks" id="tickContainer">
</div>
<!-- Range value inside of range thumb -->
<div class="range-value" id="rangeValue"></div>
<!-- Range itself -->
<input id="range" type="range" min="1" max="100" value="5" step="1">
</div>
</div>
body {
font-family: Arial;
margin: 50px;
}
.range-wrap {
position: relative;
--svg:url("data:image/svg+xml;utf8, <svg xmlns='http://www.w3.org/2000/svg' viewBox='0 15 64 50' preserveAspectRatio='none' ><path d='M0 64 C16 64 16 32 32 32 C48 32 48 64 64 64 L64 48 C52 48 52 16 32 16 C12 16 12 48 0 48 L0 64 Z' fill='white'/></svg>") var(--p,0) 0;
}
/* Styling of ticks (lines) over the range */
.ticks {
--sw:120px; /* control the width of the curve */
position: absolute;
left: -30px;
right: -30px;
padding:0 10px;
height: 50px;
background: repeating-linear-gradient(to right, red 0 3px, transparent 1px 9px) content-box;
-webkit-mask:var(--svg) /var(--sw) 50px,
linear-gradient(to right, #fff calc(50% - var(--sw)/2 + 1px), transparent 0 calc(50% + var(--sw)/2 - 1px), #fff 0)
right var(--p) top 33px/calc(200% - var(--sw)) 16px;
-webkit-mask-repeat:no-repeat;
z-index:999;
}
/* Styling the range */
input[type=range] {
--sw:100px; /* control the width of the curve */
-webkit-appearance: none;
appearance: none;
margin: 20px 0 20px -20px;
padding:0 20px;
width:100%;
height: 90px;
-webkit-mask:
var(--svg) /var(--sw) 50px,
linear-gradient(to right, #fff calc(50% - var(--sw)/2 + 1px), transparent 0 calc(50% + var(--sw)/2 - 1px), #fff 0)
right var(--p) top 33px/calc(200% - var(--sw)) 16px;
-webkit-mask-repeat:no-repeat;
background: linear-gradient(125deg, #e0e0e0 34%, rgb(0,12,110) 100%);
outline: none;
}
/* Range track */
input[type=range]::-webkit-slider-runnable-track {
width: 100%;
height: 50px;
cursor: pointer;
border-radius: 25px;
}
input[type=range]::-moz-range-track {
width: 100%;
height: 50px;
cursor: pointer;
border-radius: 25px;
}
/* Range thumb */
input[type=range]::-webkit-slider-thumb {
height: 60px;
width: 60px;
-webkit-appearance: none;
appearance: none;
border-radius: 50%;
cursor: pointer;
opacity:0;
}
input[type=range]::-moz-range-thumb {
height: 60px;
width: 60px;
appearance: none;
border-radius: 50%;
cursor: pointer;
opacity:0;
}
/* Range value (label) inside of range thumb */
.range-value {
width: 50px;
height: 50px;
line-height: 50px;
text-align: center;
color: #fff;
background: rgb(0,12,110);
font-size: 18px;
position: absolute;
transform:translateX(-50%);
top: 45px;
border-radius: 50%;
user-select: none;
select: none;
pointer-events: none;
}
// Position of span that shows range value and tick curve position
const tickContainer = document.querySelector('.range-wrap');
const range = document.getElementById('range');
const rangeV = document.getElementById('rangeValue');
const setValue = () => {
// Span position and inner value
const newValue = Number((range.value - range.min) * 100 / (range.max - range.min));
const newPosition = 30 - (newValue * 0.6);
rangeV.style.left = `calc(${newValue}% + (${newPosition}px))`;
rangeV.innerHTML = `${range.value}%`;
// Tick curve position
tickContainer.style.setProperty('--p', `calc(${newValue}%)`);
};
// Initialize setValue onload and oninput
document.addEventListener("DOMContentLoaded", setValue);
range.addEventListener('input', setValue);
