加载文字

下载代码

html

css

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html

css

.loading {
  --color: #F5F9FF;
  --duration: 2000ms;
  font-family: Roboto, Arial;
  font-size: 24px;
  position: relative;
  white-space: nowrap;
  user-select: none;
  color: var(--color);
}
.loading span {
  --x: 0;
  --y: 0;
  --move-y: 0;
  --move-y-s: 0;
  --delay: 0ms;
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  text-indent: calc(var(--x) * -1);
  overflow: hidden;
  transform: translate(var(--x), var(--y));
}
.loading.start div {
  opacity: 0;
}
.loading.start span {
  animation: move var(--duration) ease-in-out var(--delay);
}

@keyframes move {
  30% {
    transform: translate(var(--x), var(--move-y));
  }
  82% {
    transform: translate(var(--x), var(--move-y-s));
  }
}
html {
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
}

* {
  box-sizing: inherit;
}

body {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #151924;
}
body .dribbble {
  position: fixed;
  display: block;
  right: 20px;
  bottom: 20px;
}
body .dribbble img {
  display: block;
  height: 28px;
}

JavaScript

$(document).ready(function() {

let loading = $('.loading').wrapInner('<div></div>'),
        min = 20,
        max = 70,
        minMove = 10,
        maxMove = 20;

startAnimation(loading);

loading.on('animationend webkitAnimationEnd oAnimationEnd', 'span:last-child', e => {
        startAnimation(loading);
    });

//Set CSS vars & generate spans if needed
    function setCSSVars(elem, min, max, minMove, maxMove) {
        let width = Math.ceil(elem.width()),
            text = elem.text();
        for(let i = 1; i < width; i++) {
            let num = Math.floor(Math.random() * (max - min + 1)) + min,
                numMove = Math.floor(Math.random() * (maxMove - minMove + 1)) + minMove,
                dir = (i % 2 == 0) ? 1 : -1,
                spanCurrent = elem.find('span:eq(' + i + ')'),
                span = spanCurrent.length ? spanCurrent : $('<span />');
            span.css({
                '--x': i - 1 + 'px',
                '--move-y': num * dir + 'px',
                '--move-y-s': ((i % 2 == 0) ? num * dir - numMove : num * dir + numMove) + 'px',
                '--delay': i * 10 + 'ms'
            });
            if(!spanCurrent.length) {
                elem.append(span.text(text));
            }
        }
    }

//Start animation
    function startAnimation(elem) {
        elem.removeClass('start');
        setCSSVars(elem, min, max, minMove, maxMove);
        void elem[0].offsetWidth;
        elem.addClass('start');
    }
    
});

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