Black Login Page Design In Html And Css With Source Code Codepen Type

<!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">
    <title>Document</title>
    <style>
        body {
            margin: 0;
            padding: 0;
            min-height: 100vh;
            font-family: sans-serif;
            -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
        }

        .hero {
            min-height: 100vh;
            width: 100%;
            background: #000000;


            position: absolute;

        }

        div {
            box-sizing: border-box;
        }

        /*main box*/
        .main-box {
            width: 320px;
            height: 480px;
            position: relative;
            margin: 6% auto;
            background: #1b1b1b;
            display: flex;
            justify-content: center;
            align-items: center;
            overflow: hidden;
        }

        .sp {
            position: absolute;
            transition: 0.5s;
        }

        .sp-t {
            top: 0;
            right: 0;
            width: 200px;
            height: 2px;
            background: linear-gradient(to left, transparent, #ff00aa, #00ff22);
            animation: anim2 2s linear infinite;
            transform: translateY(-300%);
            animation-delay: 0.8s;
        }

        .sp-r {
            bottom: 0;
            right: 0;
            width: 2px;
            height: 200px;
            background: linear-gradient(to top, transparent, #00ff4c, #ff0095);
            animation: anim1 2s linear infinite;
            animation-delay: 0s;
        }

        .sp-b {
            right: 0;
            bottom: 0;
            width: 200px;
            height: 2px;
            background: linear-gradient(to left, transparent, #01ff4d, #ff009d);
            animation: anim2 2s linear infinite;
        }

        .sp-l {
            left: 0;
            top: 0;
            width: 2px;
            height: 200px;
            background: linear-gradient(to top, transparent, #ff0062, #01ff4d);
            animation: anim1 2s linear infinite;
            animation-delay: 1s;
            transform: translateX(-300%);
        }

        @keyframes anim1 {
            0% {
                transform: translateY(300%);

            }

            100% {
                transform: translateY(-300%);

            }
        }

        @keyframes anim2 {
            0% {
                transform: translateX(300%);
            }

            100% {
                transform: translateX(-300%);

            }
        }

        /*main box end*/

        .form-box {
            width: 316px;
            height: 476px;
            position: relative;
            background: #252525;
            padding: 5px;
            overflow: hidden;
            z-index: 5;
        }

        #after {
            width: 50%;
            height: 100%;
            content: "";
            position: absolute;
            top: 0;
            left: 50%;
            background: #000000;
            z-index: -1;
            transition: 0.5s;
        }

        #btn {
            position: absolute;
            top: 0;
            left: 0;
            width: 110px;
            height: 100%;
            background: linear-gradient(to left, #ff0080, #000a91);
            border-radius: 30px;
            transition: 0.5s;
        }



        .cont-icon {
            color: #000000;
            font-size: 28px;
            transition: transform 0.5s;
        }



        .input-group {
            width: 320px;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            top: 180px;
            position: absolute;
            padding: 0 30px;
            transition: 0.5s;
            box-sizing: border-box;
        }

        .input-field {
            width: 100%;
            padding: 10px 5px;
            margin: 10px 0;
            border-top: 0;
            border-left: 2px solid #2f00ff;
            border-right: 0;
            border-bottom: 2px solid #ff008c;
            outline: none;
            background: transparent;
            color: rgb(234, 234, 235);
            font-size: 15px;
            transition: 0.5s;
        }

        .input-field:focus {
            border-left: 2px solid transparent;
            border-bottom: 2px solid transparent;
            animation: animINP 5s linear infinite, animBTN 5s linear infinite;
            ;
        }

        .submit-btn {
            width: 85%;
            padding: 10px 30px;
            cursor: pointer;
            display: block;
            margin: 30px auto 0 auto;
            background: linear-gradient(to right, #0a07b3, #ff00c8, #5f03f4);
            border: 0;
            outline: none;
            border-radius: 30px;
            position: relative;
            z-index: 5;
            box-sizing: border-box;
            color: #fff;
            font-weight: bold;
            font-size: 15px;
            transition: 0.5s;
        }

        .submit-btn:hover {
            background: linear-gradient(to right, #ff02ea, #1c02ff, #f40388);
            color: #fff;
            border-radius: 30px;
            box-shadow: 0 0 5px #0022e0,
                0 0 25px #000000,
                0 0 50px #57AAB4,
                0 0 100px #ff00f2;
        }


        .span {
            margin: 20px 0;
            color: rgb(234, 234, 235);
            font-size: 12px;
            display: flex;
            justify-content: center;
            align-items: center;

        }

        #login {
            left: 0px;
        }

        @keyframes a {
            0% {
                background-position: 0%;
            }

            100% {
                background-position: 400%;
            }
        }

        @keyframes animBTN {
            0% {
                box-shadow: 0 0 10px 9px rgba(3, 169, 244, 0.3);
            }

            33% {
                box-shadow: 0 0 10px 9px rgba(244, 65, 165, 0.3);

            }

            66.9% {
                box-shadow: 0 0 10px 9px rgba(255, 235, 59, 0.3);

            }

            100% {
                box-shadow: 0 0 10px 9px rgba(3, 169, 244, 0.3);
            }
        }
    </style>
</head>

<body>

    <div class="hero">
        <div class="main-box">
            <div class="form-box">
                <div id="after"></div>
                <form id="login" class="input-group">
                    <input type="text" class="input-field" placeholder="User" required>
                    <input id="pwd" type="Password" class="input-field" placeholder="Password" required>
                    <input type="submit" class="submit-btn" value="Log in">
                </form>
            </div>
            <span class="sp sp-t"></span>
            <span class="sp sp-r"></span>
            <span class="sp sp-b"></span>
            <span class="sp sp-l"></span>
        </div>
    </div>


</body>


</html>

<!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">
    <title>Document</title>
    <style>
        body {
            margin: 0;
            padding: 0;
            min-height: 100vh;
            font-family: sans-serif;
            -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
        }

        .hero {
            min-height: 100vh;
            width: 100%;
            background: #000000;


            position: absolute;

        }

        div {
            box-sizing: border-box;
        }

        /*main box*/
        .main-box {
            width: 320px;
            height: 480px;
            position: relative;
            margin: 6% auto;
            background: #1b1b1b;
            display: flex;
            justify-content: center;
            align-items: center;
            overflow: hidden;
        }

        .sp {
            position: absolute;
            transition: 0.5s;
        }

        .sp-t {
            top: 0;
            right: 0;
            width: 200px;
            height: 2px;
            background: linear-gradient(to left, transparent, #ff00aa, #00ff22);
            animation: anim2 2s linear infinite;
            transform: translateY(-300%);
            animation-delay: 0.8s;
        }

        .sp-r {
            bottom: 0;
            right: 0;
            width: 2px;
            height: 200px;
            background: linear-gradient(to top, transparent, #00ff4c, #ff0095);
            animation: anim1 2s linear infinite;
            animation-delay: 0s;
        }

        .sp-b {
            right: 0;
            bottom: 0;
            width: 200px;
            height: 2px;
            background: linear-gradient(to left, transparent, #01ff4d, #ff009d);
            animation: anim2 2s linear infinite;
        }

        .sp-l {
            left: 0;
            top: 0;
            width: 2px;
            height: 200px;
            background: linear-gradient(to top, transparent, #ff0062, #01ff4d);
            animation: anim1 2s linear infinite;
            animation-delay: 1s;
            transform: translateX(-300%);
        }

        @keyframes anim1 {
            0% {
                transform: translateY(300%);

            }

            100% {
                transform: translateY(-300%);

            }
        }

        @keyframes anim2 {
            0% {
                transform: translateX(300%);
            }

            100% {
                transform: translateX(-300%);

            }
        }

        /*main box end*/

        .form-box {
            width: 316px;
            height: 476px;
            position: relative;
            background: #252525;
            padding: 5px;
            overflow: hidden;
            z-index: 5;
        }

        #after {
            width: 50%;
            height: 100%;
            content: "";
            position: absolute;
            top: 0;
            left: 50%;
            background: #000000;
            z-index: -1;
            transition: 0.5s;
        }

        #btn {
            position: absolute;
            top: 0;
            left: 0;
            width: 110px;
            height: 100%;
            background: linear-gradient(to left, #ff0080, #000a91);
            border-radius: 30px;
            transition: 0.5s;
        }



        .cont-icon {
            color: #000000;
            font-size: 28px;
            transition: transform 0.5s;
        }



        .input-group {
            width: 320px;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            top: 180px;
            position: absolute;
            padding: 0 30px;
            transition: 0.5s;
            box-sizing: border-box;
        }

        .input-field {
            width: 100%;
            padding: 10px 5px;
            margin: 10px 0;
            border-top: 0;
            border-left: 2px solid #2f00ff;
            border-right: 0;
            border-bottom: 2px solid #ff008c;
            outline: none;
            background: transparent;
            color: rgb(234, 234, 235);
            font-size: 15px;
            transition: 0.5s;
        }

        .input-field:focus {
            border-left: 2px solid transparent;
            border-bottom: 2px solid transparent;
            animation: animINP 5s linear infinite, animBTN 5s linear infinite;
            ;
        }

        .submit-btn {
            width: 85%;
            padding: 10px 30px;
            cursor: pointer;
            display: block;
            margin: 30px auto 0 auto;
            background: linear-gradient(to right, #0a07b3, #ff00c8, #5f03f4);
            border: 0;
            outline: none;
            border-radius: 30px;
            position: relative;
            z-index: 5;
            box-sizing: border-box;
            color: #fff;
            font-weight: bold;
            font-size: 15px;
            transition: 0.5s;
        }

        .submit-btn:hover {
            background: linear-gradient(to right, #ff02ea, #1c02ff, #f40388);
            color: #fff;
            border-radius: 30px;
            box-shadow: 0 0 5px #0022e0,
                0 0 25px #000000,
                0 0 50px #57AAB4,
                0 0 100px #ff00f2;
        }


        .span {
            margin: 20px 0;
            color: rgb(234, 234, 235);
            font-size: 12px;
            display: flex;
            justify-content: center;
            align-items: center;

        }

        #login {
            left: 0px;
        }

        @keyframes a {
            0% {
                background-position: 0%;
            }

            100% {
                background-position: 400%;
            }
        }

        @keyframes animBTN {
            0% {
                box-shadow: 0 0 10px 9px rgba(3, 169, 244, 0.3);
            }

            33% {
                box-shadow: 0 0 10px 9px rgba(244, 65, 165, 0.3);

            }

            66.9% {
                box-shadow: 0 0 10px 9px rgba(255, 235, 59, 0.3);

            }

            100% {
                box-shadow: 0 0 10px 9px rgba(3, 169, 244, 0.3);
            }
        }
    </style>
</head>
<body>
    <div class="hero">
        <div class="main-box">
            <div class="form-box">
                <div id="after"></div>
                <form id="login" class="input-group">
                    <input type="text" class="input-field" placeholder="User" required>
                    <input id="pwd" type="Password" class="input-field" placeholder="Password" required>
                    <input type="submit" class="submit-btn" value="Log in">
                </form>
            </div>
            <span class="sp sp-t"></span>
            <span class="sp sp-r"></span>
            <span class="sp sp-b"></span>
            <span class="sp sp-l"></span>
        </div>
    </div>
</body>
</html>