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HTML

About HTML Preprocessors

HTML preprocessors can make writing HTML more powerful or convenient. For instance, Markdown is designed to be easier to write and read for text documents and you could write a loop in Pug.

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Adding Classes

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. So you don't have access to higher-up elements like the <html> tag. If you want to add classes there that can affect the whole document, this is the place to do it.

About the <head>

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. If you need things in the <head> of the document, put that code here.

!
Insecure Resource

The resource you are linking to is using the 'http' protocol, which may not work when the browser is using https.

CSS

About CSS Preprocessors

CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

Vendor Prefixing

About Vendor Prefixing

To get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit- or -moz-.

We offer two popular choices: Autoprefixer (which processes your CSS server-side) and -prefix-free (which applies prefixes via a script, client-side).

Add External Stylesheets/Pens

Any URLs added here will be added as <link>s in order, and before the CSS in the editor. You can use the CSS from another Pen by using its URL and the proper URL extension.

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About External Resources

You can apply CSS to your Pen from any stylesheet on the web. Just put a URL to it here and we'll apply it, in the order you have them, before the CSS in the Pen itself.

You can also link to another Pen here (use the .css URL Extension) and we'll pull the CSS from that Pen and include it. If it's using a matching preprocessor, use the appropriate URL Extension and we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.

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JavaScript

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

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About External Resources

You can apply a script from anywhere on the web to your Pen. Just put a URL to it here and we'll add it, in the order you have them, before the JavaScript in the Pen itself.

If the script you link to has the file extension of a preprocessor, we'll attempt to process it before applying.

You can also link to another Pen here, and we'll pull the JavaScript from that Pen and include it. If it's using a matching preprocessor, we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.

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Packages

Add Packages

Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

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About Packages

Using packages here is powered by esm.sh, which makes packages from npm not only available on a CDN, but prepares them for native JavaScript ESM usage.

All packages are different, so refer to their docs for how they work.

If you're using React / ReactDOM, make sure to turn on Babel for the JSX processing.

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Format on Save

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Editor Settings

Code Indentation

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Visit your global Editor Settings.

HTML 

              
                doctype html
html(lang="es", dir="ltr")
    head
        meta(name="viewport", content="width=device-width, user-scalable=no, initial-scale=1.0")
        meta(charset="utf-8")
        link(rel="stylesheet", type="text/css", href="main.css")
        <link href="https://fonts.googleapis.com/css2?family=Montserrat:wght@400;700;800&display=swap" rel="stylesheet">

    body
        
        div.main
            div.container.a-container#a-container
                form(id="a-form", class="form" method="", action="")
                    h2.form_title.title Create Account
                    div.form__icons
                        img.form__icon(src="data:image/svg+xml;base64,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", alt="")
                        img.form__icon(src="data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0iMS4wIiA/PjxzdmcgaGVpZ2h0PSI1MHB4IiB2ZXJzaW9uPSIxLjEiIHZpZXdCb3g9IjAgMCA1MCA1MCIgd2lkdGg9IjUwcHgiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgeG1sbnM6c2tldGNoPSJodHRwOi8vd3d3LmJvaGVtaWFuY29kaW5nLmNvbS9za2V0Y2gvbnMiIHhtbG5zOnhsaW5rPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rIj48dGl0bGUvPjxkZWZzLz48ZyBmaWxsPSJub25lIiBmaWxsLXJ1bGU9ImV2ZW5vZGQiIGlkPSJQYWdlLTEiIHN0cm9rZT0ibm9uZSIgc3Ryb2tlLXdpZHRoPSIxIj48ZyBmaWxsPSIjMDAwMDAwIiBpZD0iTGlua2VkSW4iPjxwYXRoIGQ9Ik0yNSw1MCBDMzguODA3MTE5NCw1MCA1MCwzOC44MDcxMTk0IDUwLDI1IEM1MCwxMS4xOTI4ODA2IDM4LjgwNzExOTQsMCAyNSwwIEMxMS4xOTI4ODA2LDAgMCwxMS4xOTI4ODA2IDAsMjUgQzAsMzguODA3MTE5NCAxMS4xOTI4ODA2LDUwIDI1LDUwIFogTTI1LDQ3IEMzNy4xNTAyNjUxLDQ3IDQ3LDM3LjE1MDI2NTEgNDcsMjUgQzQ3LDEyLjg0OTczNDkgMzcuMTUwMjY1MSwzIDI1LDMgQzEyLjg0OTczNDksMyAzLDEyLjg0OTczNDkgMywyNSBDMywzNy4xNTAyNjUxIDEyLjg0OTczNDksNDcgMjUsNDcgWiBNMTQsMjAuMTE4MDQ3OSBMMTQsMzQuNjU4MTgzNCBMMTguNzEwMDg1MSwzNC42NTgxODM0IEwxOC43MTAwODUxLDIwLjExODA0NzkgTDE0LDIwLjExODA0NzkgWiBNMTYuNjY0Njk2MiwxMyBDMTUuMDUzNDA1OCwxMyAxNCwxNC4wODU4NjExIDE0LDE1LjUxMTUxMjIgQzE0LDE2LjkwNzYzMzEgMTUuMDIyMjcxMSwxOC4wMjQ3NjE0IDE2LjYwMzU1NTYsMTguMDI0NzYxNCBMMTYuNjMzNjU1NiwxOC4wMjQ3NjE0IEMxOC4yNzU5ODY3LDE4LjAyNDc2MTQgMTkuMjk4ODIyMiwxNi45MDc2MzMxIDE5LjI5ODgyMjIsMTUuNTExNTEyMiBDMTkuMjY4MjUxOSwxNC4wODU4NjExIDE4LjI3NTk4NjcsMTMgMTYuNjY0Njk2MiwxMyBaIE0zMC41NzY5MjEzLDIwLjExODA0NzkgQzI4LjA3NjE3NiwyMC4xMTgwNDc5IDI2Ljk1NjU1MDEsMjEuNTI5MzE5OSAyNi4zMzE0MTA4LDIyLjUxOTM1MjcgTDI2LjMzMTQxMDgsMjAuNDU5ODY0NCBMMjEuNjIwNzYxNCwyMC40NTk4NjQ0IEMyMS42ODI4NDI3LDIxLjgyNDIzNTYgMjEuNjIwNzYxNCwzNSAyMS42MjA3NjE0LDM1IEwyNi4zMzE0MTA4LDM1IEwyNi4zMzE0MTA4LDI2Ljg3OTU4ODcgQzI2LjMzMTQxMDgsMjYuNDQ1MDMyIDI2LjM2MTk4MTIsMjYuMDExNTM2OCAyNi40ODY1MTk5LDI1LjcwMDQwODQgQzI2LjgyNjkzMiwyNC44MzIyNiAyNy42MDIwMDY5LDIzLjkzMzQyMzMgMjguOTAzMjY3NCwyMy45MzM0MjMzIEMzMC42MDgzMzgxLDIzLjkzMzQyMzMgMzEuMjg5OTE0OSwyNS4yNjY3MjAyIDMxLjI4OTkxNDksMjcuMjIwNjMzMyBMMzEuMjg5OTE0OSwzNC45OTk2MTQgTDM1Ljk5OTgxMTksMzQuOTk5NjE0IEwzNiwyNi42NjI3NDQ2IEMzNiwyMi4xOTY2NDM5IDMzLjY3NjM3NDMsMjAuMTE4MDQ3OSAzMC41NzY5MjEzLDIwLjExODA0NzkgWiBNMzAuNTc2OTIxMywyMC4xMTgwNDc5IiBpZD0iT3ZhbC0xIi8+PC9nPjwvZz48L3N2Zz4=")
                        img.form__icon(src="data:image/svg+xml;base64,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")
                    span.form__span or use email for registration
                    input.form__input(type="text", placeholder="Name" )
                    input.form__input(type="text", placeholder="Email")
                    input.form__input(type="password", placeholder="Password")
                    button().form__button.button.submit SIGN UP
                        
                
                
            div.container.b-container#b-container
                form(id="b-form", class="form" method="", action="")
                    h2.form_title.title Sign in to Website
                    div.form__icons
                        img.form__icon(src="data:image/svg+xml;base64,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", alt="")
                        img.form__icon(src="data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0iMS4wIiA/PjxzdmcgaGVpZ2h0PSI1MHB4IiB2ZXJzaW9uPSIxLjEiIHZpZXdCb3g9IjAgMCA1MCA1MCIgd2lkdGg9IjUwcHgiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgeG1sbnM6c2tldGNoPSJodHRwOi8vd3d3LmJvaGVtaWFuY29kaW5nLmNvbS9za2V0Y2gvbnMiIHhtbG5zOnhsaW5rPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rIj48dGl0bGUvPjxkZWZzLz48ZyBmaWxsPSJub25lIiBmaWxsLXJ1bGU9ImV2ZW5vZGQiIGlkPSJQYWdlLTEiIHN0cm9rZT0ibm9uZSIgc3Ryb2tlLXdpZHRoPSIxIj48ZyBmaWxsPSIjMDAwMDAwIiBpZD0iTGlua2VkSW4iPjxwYXRoIGQ9Ik0yNSw1MCBDMzguODA3MTE5NCw1MCA1MCwzOC44MDcxMTk0IDUwLDI1IEM1MCwxMS4xOTI4ODA2IDM4LjgwNzExOTQsMCAyNSwwIEMxMS4xOTI4ODA2LDAgMCwxMS4xOTI4ODA2IDAsMjUgQzAsMzguODA3MTE5NCAxMS4xOTI4ODA2LDUwIDI1LDUwIFogTTI1LDQ3IEMzNy4xNTAyNjUxLDQ3IDQ3LDM3LjE1MDI2NTEgNDcsMjUgQzQ3LDEyLjg0OTczNDkgMzcuMTUwMjY1MSwzIDI1LDMgQzEyLjg0OTczNDksMyAzLDEyLjg0OTczNDkgMywyNSBDMywzNy4xNTAyNjUxIDEyLjg0OTczNDksNDcgMjUsNDcgWiBNMTQsMjAuMTE4MDQ3OSBMMTQsMzQuNjU4MTgzNCBMMTguNzEwMDg1MSwzNC42NTgxODM0IEwxOC43MTAwODUxLDIwLjExODA0NzkgTDE0LDIwLjExODA0NzkgWiBNMTYuNjY0Njk2MiwxMyBDMTUuMDUzNDA1OCwxMyAxNCwxNC4wODU4NjExIDE0LDE1LjUxMTUxMjIgQzE0LDE2LjkwNzYzMzEgMTUuMDIyMjcxMSwxOC4wMjQ3NjE0IDE2LjYwMzU1NTYsMTguMDI0NzYxNCBMMTYuNjMzNjU1NiwxOC4wMjQ3NjE0IEMxOC4yNzU5ODY3LDE4LjAyNDc2MTQgMTkuMjk4ODIyMiwxNi45MDc2MzMxIDE5LjI5ODgyMjIsMTUuNTExNTEyMiBDMTkuMjY4MjUxOSwxNC4wODU4NjExIDE4LjI3NTk4NjcsMTMgMTYuNjY0Njk2MiwxMyBaIE0zMC41NzY5MjEzLDIwLjExODA0NzkgQzI4LjA3NjE3NiwyMC4xMTgwNDc5IDI2Ljk1NjU1MDEsMjEuNTI5MzE5OSAyNi4zMzE0MTA4LDIyLjUxOTM1MjcgTDI2LjMzMTQxMDgsMjAuNDU5ODY0NCBMMjEuNjIwNzYxNCwyMC40NTk4NjQ0IEMyMS42ODI4NDI3LDIxLjgyNDIzNTYgMjEuNjIwNzYxNCwzNSAyMS42MjA3NjE0LDM1IEwyNi4zMzE0MTA4LDM1IEwyNi4zMzE0MTA4LDI2Ljg3OTU4ODcgQzI2LjMzMTQxMDgsMjYuNDQ1MDMyIDI2LjM2MTk4MTIsMjYuMDExNTM2OCAyNi40ODY1MTk5LDI1LjcwMDQwODQgQzI2LjgyNjkzMiwyNC44MzIyNiAyNy42MDIwMDY5LDIzLjkzMzQyMzMgMjguOTAzMjY3NCwyMy45MzM0MjMzIEMzMC42MDgzMzgxLDIzLjkzMzQyMzMgMzEuMjg5OTE0OSwyNS4yNjY3MjAyIDMxLjI4OTkxNDksMjcuMjIwNjMzMyBMMzEuMjg5OTE0OSwzNC45OTk2MTQgTDM1Ljk5OTgxMTksMzQuOTk5NjE0IEwzNiwyNi42NjI3NDQ2IEMzNiwyMi4xOTY2NDM5IDMzLjY3NjM3NDMsMjAuMTE4MDQ3OSAzMC41NzY5MjEzLDIwLjExODA0NzkgWiBNMzAuNTc2OTIxMywyMC4xMTgwNDc5IiBpZD0iT3ZhbC0xIi8+PC9nPjwvZz48L3N2Zz4=")
                        img.form__icon(src="data:image/svg+xml;base64,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")
                    span.form__span or use your email account
                    input.form__input(type="text", placeholder="Email")
                    input.form__input(type="password", placeholder="Password")
                    a().form__link Forgot your password?
                    button().form__button.button.submit SIGN IN
                    
            div.switch#switch-cnt
                div.switch__circle
                div.switch__circle.switch__circle--t
                div.switch__container#switch-c1
                    h2.switch__title.title Welcome Back !
                    p.switch__description.description To keep connected with us please login with your personal info
                    button().switch__button.button.switch-btn SIGN IN
                
                div.switch__container#switch-c2.is-hidden
                    h2.switch__title.title Hello Friend !
                    p.switch__description.description Enter your personal details and start journey with us
                    button().switch__button.button.switch-btn SIGN UP
                
            
            
    
        script(src="main.js")
!

CSS 

              
                $bg: #EDF2F0;

$neu-1: #ecf0f3;
$neu-2: #d1d9e6;

$white: #f9f9f9;
$gray: #a0a5a8;
$black: #181818;

$purple: #4B70E2;


$transition: 1.25s;

*, *::after, *::before {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
    user-select: none;
}
/* Generic */
body{
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: 'Montserrat', sans-serif;
    font-size: 12px;
	background-color: $neu-1;
	color: $gray;
}
/**/
.main{
    position: relative;
    width: 1000px;
	min-width: 1000px;
	min-height: 600px;
    height: 600px;
    padding: 25px;
	background-color: $neu-1;
	box-shadow:
		10px 10px 10px $neu-2,
		-10px -10px 10px $white;
	border-radius: 12px;
	overflow: hidden;
	@media(max-width: 1200px){  transform: scale(.7); }
	@media(max-width: 1000px){  transform: scale(.6); }
	@media(max-width: 800px){  transform: scale(.5); }
	@media(max-width: 600px){  transform: scale(.4); }
	

}
.container{
    display: flex;
    justify-content: center;
    align-items: center;
    position: absolute;

    top: 0;
    width: 600px;
    height: 100%;
    padding: 25px;

	background-color: $neu-1;
    transition: $transition;
}
.form{
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    width: 100%;
    height: 100%;

    &__icon{
        object-fit: contain;
        width: 30px;
        margin: 0 5px;
        opacity: .5;
        transition: .15s;

        &:hover{
            opacity: 1;
            transition: .15s;
            cursor: pointer;

        }
    }
    &__input{
        width: 350px;
        height: 40px;
        margin: 4px 0;

        padding-left: 25px;
        font-size: 13px;
        letter-spacing: .15px;
        border: none;
        outline: none;

        font-family: 'Montserrat', sans-serif;
		background-color: $neu-1;
		transition: .25s ease;
		border-radius: 8px;

		box-shadow:
			inset 2px 2px 4px $neu-2,
			inset -2px -2px 4px $white;

		&:focus{
			box-shadow:
				inset 4px 4px 4px $neu-2,
				inset -4px -4px 4px $white;
		}
    }
    &__span{
        margin-top: 30px;
        margin-bottom: 12px;
    }
    &__link{
        color: $black;
        font-size: 15px;
        margin-top: 25px;
        border-bottom: 1px solid $gray;
        line-height: 2;
    }
}
.title{
    font-size: 34px;
    font-weight: 700;
    line-height: 3;
    color: $black;
}
.description{
    font-size: 14px;
    letter-spacing: .25px;
    text-align: center;
    line-height: 1.6;
}
.button{
    width: 180px;
    height: 50px;
    border-radius: 25px;
    margin-top: 50px;
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 1.15px;

	background-color: $purple;
	color: $white;
	box-shadow:
		8px 8px 16px $neu-2,
		-8px -8px 16px $white;

	border: none;
    outline: none;
}
/**/

.a-container{
    z-index: 100;
    left: calc(100% - 600px );
}
.b-container{
    left: calc(100% - 600px );
    z-index: 0;
}

.switch{
    display: flex;
    justify-content: center;
    align-items: center;
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 400px;

    padding: 50px;
    z-index: 200;
    transition: $transition;

    background-color: $neu-1;
    overflow: hidden;


	box-shadow:
		4px 4px 10px $neu-2,
		-4px -4px 10px $white;

    &__circle{
        position: absolute;
        width: 500px;
        height: 500px;
        border-radius: 50%;
		background-color: $neu-1;
		box-shadow:
			inset 8px 8px 12px $neu-2,
			inset -8px -8px 12px $white;

        bottom: -60%;
        left: -60%;
        transition: $transition;

        &--t{
            top: -30%;
            left: 60%;
            width: 300px;
            height: 300px;
        }
    }

    &__container{
        display: flex;
        justify-content: center;
        align-items: center;
        flex-direction: column;
        position: absolute;
        width: 400px;
        padding: 50px 55px;

        transition: $transition ;

    }

    &__button{
        cursor: pointer;
		&:hover{
			box-shadow:
				6px 6px 10px $neu-2,
				-6px -6px 10px $white;
			transform: scale(.985);
			transition: .25s;
		}
		&:active,
		&:focus{
			box-shadow:
				2px 2px 6px $neu-2,
				-2px -2px 6px $white;
			transform: scale(.97);
			transition: .25s;
		}
    }
}
/**/
.is-txr{
    left: calc(100% - 400px );
    transition: $transition;
    transform-origin: left;
}
.is-txl{
    left: 0;
    transition: $transition;
    transform-origin: right;
}
.is-z200{
    z-index: 200;
    transition: $transition;
}
.is-hidden{
    visibility: hidden;
    opacity: 0;
    position: absolute;
    transition: $transition;
}
.is-gx{
    animation: is-gx $transition;
}
@keyframes is-gx {
    0%, 10%, 100%{ width: 400px; }
    30%, 50%{ width: 500px;}
}
!

JS 

              
                /*
		Designed by: SELECTO
		Original image: https://dribbble.com/shots/5311359-Diprella-Login
*/

let switchCtn = document.querySelector("#switch-cnt");
let switchC1 = document.querySelector("#switch-c1");
let switchC2 = document.querySelector("#switch-c2");
let switchCircle = document.querySelectorAll(".switch__circle");
let switchBtn = document.querySelectorAll(".switch-btn");
let aContainer = document.querySelector("#a-container");
let bContainer = document.querySelector("#b-container");
let allButtons = document.querySelectorAll(".submit");

let getButtons = (e) => e.preventDefault()

let changeForm = (e) => {

    switchCtn.classList.add("is-gx");
    setTimeout(function(){
        switchCtn.classList.remove("is-gx");
    }, 1500)

    switchCtn.classList.toggle("is-txr");
    switchCircle[0].classList.toggle("is-txr");
    switchCircle[1].classList.toggle("is-txr");

    switchC1.classList.toggle("is-hidden");
    switchC2.classList.toggle("is-hidden");
    aContainer.classList.toggle("is-txl");
    bContainer.classList.toggle("is-txl");
    bContainer.classList.toggle("is-z200");
}

let mainF = (e) => {
    for (var i = 0; i < allButtons.length; i++)
        allButtons[i].addEventListener("click", getButtons );
    for (var i = 0; i < switchBtn.length; i++)
        switchBtn[i].addEventListener("click", changeForm)
}

window.addEventListener("load", mainF);
!
999px

Console