Login and Signup form With Animated Neon Submit Button

HTML

CSS

Output

HTML Copied

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

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Login and Signup form With Animated Neon Submit Button</title>
</head>

<body>
    <div class="login-page">
        <div class="form">
            <form class="register-form" method="POST">
                <h2>Register</h2>
                <input type="text" placeholder="Full Name *" autocomplete="off" required />
                <input type="text" placeholder="Username *" autocomplete="off" required />
                <input type="email" placeholder="Email *" autocomplete="off" required />
                <input type="password" placeholder="Password *" autocomplete="off" required />
                <a class="btn" href="#">
                    <span></span>
                    <span></span>
                    <span></span>
                    <span></span>
                    Create
                </a>
                <p class="message">Already registered? <a href="#">Sign In</a></p>
            </form>
            <form class="login-form" method="post">
                <h2></i> Login</h2>
                <input type="text" placeholder="Username" autocomplete="off" required />
                <input type="password" placeholder="Password" autocomplete="off" required />
                <a class="btn" href="#">
                    <span></span>
                    <span></span>
                    <span></span>
                    <span></span>
                    Sign in
                </a>
                <p class="message">Not registered? <a href="#">Create an account</a></p>
            </form>
        </div>
    </div>
    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
    <script>
        $('.message a').click(function () {
            $('form').animate({ height: "toggle", opacity: "toggle" }, "slow");
        });
    </script>
</body>

</html>

CSS Copied

@import url(https://fonts.googleapis.com/css?family=Poppins:300);
html {
 height: 100%;
}
body{
 margin:0;
 padding:0;
 font-family: sans-serif;
 background: #fff;
 display: flex;
 justify-content: center;
 align-items: center;
}
.login-page {
  max-width: 400px;
  width:100%;
  padding: 8% 0 0;
  margin: auto;
}
.form {
  position: relative;
  z-index: 1;
  text-align: center;
  position: absolute;
  top: 50%;
  left: 50%;
  max-width: 400px;
  width:100%;
  padding: 40px;
  transform: translate(-50%, -50%);
  background: rgb(8, 1, 37);
  box-sizing: border-box;
  box-shadow: 0 15px 25px rgba(0,0,0,.4);
  border-radius: 10px;
}
.form input {
 width: 100%;
 padding: 10px 0;
 font-size: 13px;
 color: #fff;
 margin-bottom: 30px;
 border: none;
 border-bottom: 1px solid #fff;
 outline: none;
 background: transparent;
  
}
h2{
 color:white;
}

.form .message {
  margin: 15px 0 0;
  color: #b3b3b3;
  font-size: 12px;
}
.form .message a {
  color: #28b847;
  text-decoration: none;
}
.form .register-form {
  display: none;
}
.btn {
  position: relative;
  display: inline-block;
  padding: 10px 20px;
  color: #28b847;
  font-size: 16px;
  text-decoration: none;
  overflow: hidden;
  transition: .5s;
  margin-top: 15px;
  letter-spacing: 2px
}
.btn:hover {
  background: #28b847;
  color: #fff;
  border-radius: 5px;
  box-shadow: 0 0 5px #28b847,
              0 0 25px #28b847,
              0 0 50px #28b847,
              0 0 100px #28b847;
}

.btn span {
  position: absolute;
  display: block;
}

.btn span:nth-child(1) {
  top: 0;
  left: -100%;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, #28b847);
  animation: btn-anim1 1s linear infinite;
}

@keyframes btn-anim1 {
  0% {
    left: -100%;
  }
  50%,100% {
    left: 100%;
  }
}

.btn span:nth-child(2) {
  top: -100%;
  right: 0;
  width: 2px;
  height: 100%;
  background: linear-gradient(180deg, transparent, #28b847);
  animation: btn-anim2 1s linear infinite;
  animation-delay: .25s
}

@keyframes btn-anim2 {
  0% {
    top: -100%;
  }
  50%,100% {
    top: 100%;
  }
}

.btn span:nth-child(3) {
  bottom: 0;
  right: -100%;
  width: 100%;
  height: 2px;
  background: linear-gradient(270deg, transparent, #28b847);
  animation: btn-anim3 1s linear infinite;
  animation-delay: .5s
}

@keyframes btn-anim3 {
  0% {
    right: -100%;
  }
  50%,100% {
    right: 100%;
  }
}

.btn span:nth-child(4) {
  bottom: -100%;
  left: 0;
  width: 2px;
  height: 100%;
  background: linear-gradient(360deg, transparent, #28b847);
  animation: btn-anim4 1s linear infinite;
  animation-delay: .75s
}

@keyframes btn-anim4 {
  0% {
    bottom: -100%;
  }
  50%,100% {
    bottom: 100%;
  }
}

Login and Signup form With Animated Neon Submit Button

JS Copied

Output