js实现文字背景颜色调整对比效果代码-html代码-BFW代码库

js实现文字背景颜色调整对比效果代码

代码语言：html

所属分类：其他

代码描述：js实现文字背景颜色调整对比效果代码

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
<style>
    :root {
  --bg1: #fd5;
  --bg2: #fd5;
  --fg1: #000;
  --fg2: #fff;
}

* {
  box-sizing: border-box;
}

body {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  font: normal 19px/1.5 helvetica, sans-serif;
}

.container {
  width: 500px;
  height: 400px;
  position: relative;
}

.top {
  position: absolute;
  top: -48px;
  font-size: 0.7em;
}
.top h3 {
  margin: 0;
  padding: 0;
  margin-bottom: 0.5em;
  color: #333;
  display: inline-block;
}
.top label {
  margin-left: 1.15em;
}
.top input {
  margin-left: 0.1em;
}

.bottom {
  position: relative;
  width: 500px;
  height: 400px;
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
}
.bottom .left, .bottom .right {
  position: absolute;
  top: 0;
  left: 0;
  height: 400px;
  overflow: hidden;
}
.bottom .left .content, .bottom .right .content {
  width: 500px;
  padding: 3em;
}
.bottom .left {
  width: 50%;
  max-width: 100%;
  min-width: 10px;
  resize: horizontal;
  z-index: 1;
  -webkit-animation: demo 4.5s 1;
          animation: demo 4.5s 1;
}
.bottom .left .resizable-handle {
  width: 8px;
  height: 100%;
  background: rgba(255, 238, 204, 0.5);
  border-left: 1px solid rgba(255, 255, 255, 0.75);
  border-right: 1px solid rgba(0, 0, 0, 0.06125);
  border-radius: 5px;
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.06125);
  transition: all 0.2s;
}
.bottom .left .resizable-handle:hover {
  width: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.125);
}
.bottom .left .resizable-handle-active {
  width: 13px !important;
  background: rgba(255, 238, 204, 0.65);
}
.bottom .left {
  background: var(--bg1);
  color: var(--fg1);
}
.bottom .right {
  background: var(--bg2);
  color: var(--fg2);
}
.bottom h1 {
  margin-top: 0;
}
.bottom .small {
  font-size: 0.75em;
}

@-webkit-keyframes demo {
  12.5% {
    width: 80%;
  }
  50% {
    width: 25%;
  }
  80% {
    width: 50%;
  }
}

@keyframes demo {
  12.5% {
    width: 80%;
  }
  50% {
    width: 25%;
  }
  80% {
    width: 50%;
  }
}
</style>
</head>

<body>
    <!-- partial:index.partial.html -->
    <div class="container">
        <div class="top">
            <h3>Colors</h3>
            <label>
      BG 1:
      <input type="color" id="bg1" value="#ffdd55" />
    </label>
            <label>
      Text 1:
      <input type="color" id="fg1" value="#000000" />
    </label>
            <label>
      BG 2:
      <input type="color" id="bg2" value="#ffdd55" />
    </label>
            <label>
      Text 2:
      <input type="color" id="fg2" value="#ffffff" />
    </label>
        </div>

        <div class="bottom">
            <div class="left">
                <div class="content">
                    <h1>My Huge Page Title</h1>
                    <p>Sed dapibus neque placerat nisi posuere, et porta nunc aliquam. Quisque at nisi quis mauris condimentum hendrerit a at libero. Nunc vestibulum tellus ut lacus fringilla, eget consectetur justo rhoncus.</p>
                    <p class="small">Aenean consectetur sapien eu congue lobortis. Integer vitae cursus sapien, sed blandit felis.</p>
                </div>
            </div>

            <div class="right">
                <div class="conten.........完整代码请登录后点击上方下载按钮下载查看