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Ahtsham Ajus
Ahtsham Ajus

Posted on

Today I have learned to wave the form Input

This tutorial will mainly focus on how to use transitions in CSS to create a form input label wave.i used javascript to create the wave effect input label.when input is focused. Let's dive into the world of transition!

Today I have learned to wave the form input, in this I have done HTML CSS and JavaScript, also with the help of CSS, I have given the transition of the label in the input.

Here's My HTML code

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="./style.css">
    <title>Form Input Wave</title>
</head>
<body>
   <div class="container">
       <h1>PLease Login</h1>
       <form>
           <div class="form-control">
            <input type="text" required>
            <label>Email</label>
           </div>

           <div class="form-control">
            <input type="password" required>
            <label>Password</label>
           </div>

           <button class="btn">Login</button>

           <p class="text">Don't have an account?</p>
           <a href="#">Register</a>
       </form>
   </div>

    <script src="./script.js"></script>
</body>
</html>
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Here's My CSS code

@import url("https://fonts.googleapis.com/css?family=Ubuntu");

* {
  box-sizing: border-box;
}

body {
  background-color: steelblue;
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: "Ubuntu", sans-serif;
  height: 100vh;
  overflow: hidden;
  margin: 0;
}

.container {
  background-color: rgba(0, 0, 0, 0.4);
  padding: 20px 40px;
  border-radius: 5px;
}
.container h1 {
  text-align: center;
  margin-bottom: 30px;
}

.container a {
  text-decoration: none;
  color: lightblue;
}

.btn {
  cursor: pointer;
  display: inline-block;
  width: 100%;
  background: lightblue;
  padding: 15px;
  font-family: inherit;
  font-size: 16px;
  border: 0;
  border-radius: 5px;
}

.btn:focus {
  outline: 0;
}

.form-control {
  position: relative;
  margin: 20px 0 40px;
  width: 300px;
}

.btn:hover {
  color: #fff;
  background-color: rgba(0, 0, 0, 0.4);
}

.btn:active {
  transform: scale(0.98);
}

.text {
  margin-top: 30px;
}

.form-control input {
  background-color: transparent;
  border: 0;
  border-bottom: 2px #fff solid;
  display: block;
  width: 100%;
  padding: 15px 0;
  font-size: 18px;
  color: #fff;
}

.form-control input:focus,
.form-control input:valid {
  outline: 0;
  border-bottom-color: lightblue;
}

.form-control label {
  position: absolute;
  top: 15px;
  left: 0;
}

.form-control label span {
  display: inline-block;
  font-size: 18px;
  min-width: 5px;
  transition: 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.form-control input:focus + label span,
.form-control input:valid + label span {
  color: lightblue;
  transform: translateY(-30px);
}
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Here's My JAVASCRIPT code

const labels = document.querySelectorAll(".form-control label");

labels.forEach((label) => {
  label.innerHTML = label.innerText
    .split("")
    .map(
      (letter, idx) =>
        `<span style="transition-delay:${idx * 50}ms">${letter}</span>`
    )
    .join("");
});
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Here's output on Code pen lets see..

Top comments (2)

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adam_cyclones profile image
Adam Crockett • Edited on

Nice and simple effect 👍
Here's a one liner because everyone's giving them out these days.

Array.from("hello world", (letter, i) => `<span style="transition-delay:${i * 50}ms">${letter}</span>`).join('');
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adam_cyclones profile image
Adam Crockett

Hiya Ahtsham, me again, I spotted a bug 😩

The span labels sometimes get in the way on a mobile because they float above the input, a tap or click on the lettering then blocks the focus.
Never fear, here is one of several solutions

<span style="transition-delay:${idx * 50}ms; pointer-events: none;">${letter}</span>
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Now you can "click through" the spans as if they where ghosts 👻, spooky right?

In defense of the modern web

I expect I'll annoy everyone with this post: the anti-JavaScript crusaders, justly aghast at how much of the stuff we slather onto modern websites; the people arguing the web is a broken platform for interactive applications anyway and we should start over;

React users; the old guard with their artisanal JS and hand authored HTML; and Tom MacWright, someone I've admired from afar since I first became aware of his work on Mapbox many years ago. But I guess that's the price of having opinions.