JSFiddle - React, Tailwind, and code Playground

by Annie Lagang

HTML

<div class="pie">
    <!-- clip is used for reversing the colors for angles more than 180 -->
    <div class="clip1">
        <div class="slice1"></div>
    </div>
    <div class="clip2">
        <div class="slice2"></div>
    </div>
    <div class="status"></div>
</div>

CSS

* {
    margin:0;
    padding:0;
}
.pie {
    background-color:#ecc0b7;
    width:120px;
    height:120px;
    -moz-border-radius:50%;
    -webkit-border-radius:50%;
    border-radius:50%;
    position:relative;
}
.clip1 {
    position:absolute;
    top:0;
    left:0;
    width:120px;
    height:120px;
    clip:rect(0px, 120px, 120px, 60px);
}
.slice1 {
    position:absolute;
    width:120px;
    height:120px;
    clip:rect(0px, 60px, 120px, 0px);
    -moz-border-radius:50%;
    -webkit-border-radius:50%;
    border-radius:50%;
    background-color:#f7e5e1;
    border-color:#f7e5e1;
    -moz-transform:rotate(0);
    -webkit-transform:rotate(0);
    -o-transform:rotate(0);
    transform:rotate(0);
}
.clip2 {
    position:absolute;
    top:0;
    left:0;
    width:120px;
    height:120px;
    clip:rect(0, 60px, 120px, 0px);
}
.slice2 {
    position:absolute;
    width:120px;
    height:120px;
    clip:rect(0px, 120px, 120px, 60px);
    -moz-border-radius:50%;
    -webkit-border-radius:50%;
    border-radius:50%;
    background-color:#f7e5e1;
    border-color:#f7e5e1;
    -moz-transform:rotate(0);
    -webkit-transform:rotate(0);
    -o-transform:rotate(0);
    transform:rotate(0);
}
.status {
    position:absolute;
    height:30px;
    width:200px;
    line-height:60px;
    text-align:center;
    top:50%;
    margin-top:-35px;
    font-size:60px;
}

JavaScript

$(document).ready(function () {
    progressBarUpdate(37, 100);
});

function rotate(element, degree) {
    element.css({
        '-webkit-transform': 'rotate(' + degree + 'deg)',
            '-moz-transform': 'rotate(' + degree + 'deg)',
            '-ms-transform': 'rotate(' + degree + 'deg)',
            '-o-transform': 'rotate(' + degree + 'deg)',
            'transform': 'rotate(' + degree + 'deg)',
            //'zoom': 1
    });
}

function progressBarUpdate(x, outOf) {
    var firstHalfAngle = 180;
    var secondHalfAngle = 0;

    // caluclate the angle
    var drawAngle = x / outOf * 360;

    // calculate the angle to be displayed if each half
    if (drawAngle <= 180) {
        firstHalfAngle = drawAngle;
    } else {
        secondHalfAngle = drawAngle - 180;
    }

    // set the transition
    rotate($(".slice1"), firstHalfAngle);
    rotate($(".slice2"), secondHalfAngle);

    // set the values on the text
    // $(".status").html(x + " of " + outOf);
}