标签 javascript 下的文章

"单击输入框，在上方会显示一行动态的文字提示。
title=

编写HTML代码如下：

<!DOCTYPE html>
<html>
  <head>
    <meta charset=""UTF-8"" />
    <title>使用 CSS 和 Javascript 输入文本点击动画</title>
    <link rel=""stylesheet"" href=""style.css"" />
  </head>
  <body>
    <div class=""box"">
      <input type=""text"" required />
      <label>请输入您的名字</label>
    </div>
    <script src=""script.js""></script>
  </body>
</html>

编写CSS代码如下：

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #29313a;
}

.box {
    position: relative;
    width: 350px;
}

.box input {
    position: relative;
    width: 100%;
    padding: 10px 0;
    background: transparent;
    border: none;
    outline: none;
    border-bottom: 2px solid #999;
    color: #fff;
    font-size: 1.25em;
    transition: 0.5s;
}

.box label {
    position: absolute;
    left: 0;
    padding: 10px 0;
    pointer-events: none;
    color: #666;
    user-select: none;
}

.box label span {
    display: inline-flex;
    font-size: 1.25em;
    letter-spacing: 0.05em;
    transition: 0.25s;
}

.box input:focus~label span,
.box input:valid~label span {
    color: #0f0;
    text-shadow: 0 0 5px #0f0,
    0 0 15px #0f0,
    0 0 30px #0f0;
    transform: translateY(-40px);
}

.box input:focus,
.box input:valid {
    border-bottom: 2px solid #fff;
}

编写Javascript代码如下：

let label = document.querySelector(""label"");

label.innerHTML = label.innerText
  .split("""")
  .map(
    (words, i) => `<span style=""transition-delay:${i * 30}ms"">${words}</span>`
  )
  .join("""");

"

先看一看效果，是不是很炫酷啊？？


HTMl代码如下：

<!DOCTYPE html>
<html>
  <head>
    <meta charset=""UTF-8"" />
    <title>CSS特效：鼠标悬停效果</title>
    <link rel=""stylesheet"" href=""style.css"" />
  </head>
  <body>
    <div class=""cursor""></div>
    <ul>
      <li><a href=""#"">每天嘻嘻哈哈</a></li>
      <li><a href=""#"">热爱生活，快乐成长</a></li>
      <li><a href=""#"">CSS特效：鼠标悬停效果</a></li>
    </ul>
    <script src=""script.js""></script>
  </body>
</html>

CSS代码如下：

{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #222;
    cursor: none;
}

.cursor {
    position: fixed;
    width: 20px;
    height: 20px;
    transform: translate(-50%, -50%);
    pointer-events: none;
    opacity: 0;
    border-radius: 50%;
    background-color: #0f0;
    box-shadow: 0 0 5px #0f0,
    0 0 15px #0f0,
    0 0 30px #0f0,
    0 0 60px #0f0;
    transition: opacity 0.5s;
    z-index: 999;
}

body:hover .cursor {
    opacity: 1;
}

ul {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    list-style: none;
}

ul li {
    padding: 10px 0;
}

ul a {
    text-decoration: none;
    color: #bbb;
    cursor: none;
}

ul li span {
    font-size: 2.5em;
    letter-spacing: 0.05em;
    transition: 0.25s;
}

ul li:hover span {
    color: #0f0;
    text-shadow: 0 0 5px #0f0,
    0 0 15px #0f0,
    0 0 30px #0f0,
    0 0 60px #0f0,
    0 0 100px #0f0;
}

JavaScript代码如下：

let cursor = document.querySelector("".cursor"");

document.addEventListener(""mousemove"", (e) =&gt; {
  cursor.style.left = `${e.pageX}px`;
  cursor.style.top = `${e.pageY}px`;
});

document.querySelectorAll(""ul a"").forEach((text) =&gt; {
  text.innerHTML = text.innerText
    .split("""")
    .map(
      (words, i) =&gt; `&lt;span style=""transition-delay:${i * 30}ms""&gt;${words}&lt;/span&gt;`
    )
    .join("""");
});

"