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How to implement css progress bar text that changes according to progress

小云云

Jan 11, 2018 am 10:13 AM

css Variety

This article mainly introduces the sample code for the text of the css progress bar to change according to the progress. It also introduces the text in the progress bar that needs to change according to the length of the progress. The editor thinks it is quite good. Now I will share it with you and make it for everyone. a reference. Let’s follow the editor to take a look, I hope it can help everyone.

Requirements

1. The text in the progress bar needs to change according to the length of the progress

Principle

Use two p’s of the same style to overlap them

Effect

The font starts out blue and turns to white following the progress bar

Code

<!DOCTYPE html>
<html lang="cmn-hans">
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no">
    <script>!function(e,t){function n(){t.body?t.body.style.fontSize=12*o+"px":t.addEventListener("DOMContentLoaded",n)}function d(){var e=i.clientWidth/10;i.style.fontSize=e+"px"}var i=t.documentElement,o=e.devicePixelRatio||1;if(n(),d(),e.addEventListener("resize",d),e.addEventListener("pageshow",function(e){e.persisted&&d()}),o>=2){var a=t.createElement("body"),s=t.createElement("p");s.style.border=".5px solid transparent",a.appendChild(s),i.appendChild(a),1===s.offsetHeight&&i.classList.add("hairlines"),i.removeChild(a)}}(window,document);</script>
    <title>进度条渐变</title>
    <style type="text/css">
        * {
            box-sizing: border-box;
        }
        .box{
            position: fixed;
            left: 50%;
            transform: translate(-50%);
            width: 320px;
            height: 44px;
            background-color: white;
            color: #00a0e9;
            border: 1px solid #00a0e9;
        }
        .process{
            position: absolute;
            height: 100%;
            width: 0;
            background: #00a0e9;
            color: white;
            overflow: hidden;
            z-index: 10;
        }
        .process-text{
            position: absolute;
            left: 160px;
            top: 50%;
            font-size: 12px;
            transform: translate(-50%, -50%);
            white-space: nowrap;
        }
    </style>
 
    <script>
        function process() {
            var t = 1;
            var max = 320;
            var progress = document.getElementById("process");
            var process_texts = document.getElementsByClassName("process-text");
            var interval = setInterval(function () {
                if (t == max) {
                    clearInterval(interval);
                    for (var i in process_texts){
                        process_texts[i].innerHTML = &#39;完成&#39;
                    }
                } else {
                    progress.style.width = t + "px";
                    for (var i in process_texts){
                        process_texts[i].innerHTML = &#39;进度&#39; + (t / max * 100).toFixed(2) + "%"
                    }
                    t++;
                }
            }, 10)
        }
    </script>
 
</head>
<body>
 
<p class="box" onclick="process()">
    <p class="process" id="process">
        <span class="process-text">点击开始</span>
    </p>
    <span class="process-text">点击开始</span>
</p>
 
</body>
</html>

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