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HTML

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CSS

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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

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JavaScript

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Babel includes JSX processing.

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HTML 

              
                <section id="contact">
	<div class="sectionheader">	<h1>CONTACT</h1></div>
	<article>
	<p>Yoda soon you will call me master Governor Tarkin. A new hope Boba Fett bantha forest moon. Tusken raider Master Yoda do or do not never tell me the odds.</p>
		
			<label for="checkcontact" class="contactbutton"><div class="mail"></div></label><input id="checkcontact" type="checkbox">
	
			<form action="" method="post" class="contactform">
				<p class="input_wrapper"><input type="text" name="contact_nom" value=""  id ="contact_nom"><label for="contact_nom">NAME</label></p>
				<p class="input_wrapper"><input type="text" name="contact_email" value=""  id ="contact_email"><label for="contact_email">EMAIL</label></p>
				<p class="input_wrapper"><input type="text" name="contact_sujet" value=""  id ="contact_sujet"><label for="contact_sujet">SUBJECT</label></p>
				<p class="textarea_wrapper"><textarea name="contact_message" id="contact_message"></textarea></p>
				<p class="submit_wrapper"><input type="submit" value="ENVOYER"></p>			
			</form>
	</article>
</section>
!

CSS 

              
                @import url(https://fonts.googleapis.com/css?family=Oswald:400,700);
@import url(https://fonts.googleapis.com/css?family=Open+Sans);
body{
  background: #F0F0F0;
  font-family: Open Sans ,sans-serif;
  line-height:1.5em;
}
#contact {
width: 500px;
margin:2em auto;
background:white;
position: relative;
}
#contact::after {
content: "";
display: block;
height: 30px;
width: 90%;
left: 5%;
bottom: 0;
position: absolute;
-webkit-box-shadow: 0 5px 15px 0 rgba(0, 0, 0, 0.19);
box-shadow: 0 5px 15px 0 rgba(0, 0, 0, 0.19);
border-radius: 100%;
z-index: -1;
}
#contact article {
  padding: 1em;
}
#contact h1 {
background: #F2385A;
font-family: Oswald ,sans-serif;
font-size: 1.75em;
padding: 0.6em 0 0.6em 0.4em;
color: white;
text-shadow: 0 0.06em 0 #424242;
position: relative;
}
.contactbutton {
background: #F2385A;
-webkit-box-shadow: 1px 1px 0 0 #832032,2px 2px 0 0 #832032,3px 3px 0 0 #832032;
box-shadow: 1px 1px 0 0 #832032,2px 2px 0 0 #832032,3px 3px 0 0 #832032;
text-align: center;
display: block;
width: 100%;
height: 50px;
margin-top: 20px;
margin-bottom: 2px;
cursor: pointer;
}
.contactbutton:hover {
-webkit-box-shadow: 1px 1px 0 0 #832032,0px 0px 0 0 #832032,0px 0px 0 0 #832032;
box-shadow: 1px 1px 0 0 #832032,0px 0px 0 0 #832032,0px 0px 0 0 #832032;
margin-top: 22px;
margin-left: 2px;
margin-bottom: 0px;
}
.mail {
margin-top: 11px;
font-size: 15px;
display: inline-block;
border-top: 2em solid transparent;
border-left: 2.6em solid #832032;
height: 0;
width: 0;
position: relative;
}
.mail:before {
content: '';
top: -2.5em;
left: -2.95em;
display: block;
position: absolute;
border-top: 1.2em solid #832032;
border-left: 1.6em solid transparent;
border-right: 1.6em solid transparent;
border-bottom: 1em solid transparent;
font-size: 0.8em;
}
.mail::after {
display: block;
content: "";
position: absolute;
border-top: 2em solid transparent;
border-right: 2.6em solid #832032;
height: 0;
width: 0;
left: -2.18em;
bottom: 0;
}
#checkcontact{
position: absolute;
left: -9999px;
}
.contactform {
overflow: hidden;
max-height: 0px;
-webkit-transition: all linear 1s;
-moz-transition: all linear 1s;
-o-transition: all linear 1s;
-ms-transition: all linear 1s;
transition: all linear 1s;
}
#checkcontact:checked + .contactform {
max-height: 1000px;
}
.input_wrapper {
position: relative;
}
.textarea_wrapper textarea {
margin-top: 20px;
display: block;
width: 100%;
background: white;
border: 1px solid #DADADA;
box-shadow: 0 0 1px 0 #E4E4E4;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
padding: 1em;
-webkit-transition: all 250ms ease;
-moz-transition: all 250ms ease;
-ms-transition: all 250ms ease;
-o-transition: all 250ms ease;
transition: all 250ms ease;
color: #5E5E5E;
}
.input_wrapper input[type="text"] {
margin-top: 1em;
display: block;
width: 100%;
background: white;
border: 1px solid #DADADA;
box-shadow: 0 0 1px 0 #E4E4E4;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
padding: 1em;
-webkit-transition: all 250ms ease;
-moz-transition: all 250ms ease;
-ms-transition: all 250ms ease;
-o-transition: all 250ms ease;
transition: all 250ms ease;
color: #5E5E5E;
text-indent: 15%;
}
.input_wrapper input[type="text"]:focus {
background: rgba(242, 56, 90, 0.05);
box-shadow: inset 2px 2px 5px 0 #DADADA;
outline: none;
text-indent: 0;
}
.input_wrapper label {
position: absolute;
left: 0;
top: 0;
height: 100%;
background: #F2385A;
color: white;
font-family: Oswald ,sans-serif;
box-sizing: border-box;
width: 15%;
text-align: center;
line-height: 2.8em;
-webkit-transition: all 250ms ease;
-moz-transition: all 250ms ease;
-ms-transition: all 250ms ease;
-o-transition: all 250ms ease;
transition: all 250ms ease;
}
.input_wrapper input[type="text"]:focus + label {
left: 85%;
}
.textarea_wrapper textarea {
margin-top: 20px;
display: block;
width: 100%;
  min-height:150px;
background: white;
border: 1px solid #DADADA;
box-shadow: 0 0 1px 0 #E4E4E4;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
padding: 1em;
-webkit-transition: all 250ms ease;
-moz-transition: all 250ms ease;
-ms-transition: all 250ms ease;
-o-transition: all 250ms ease;
transition: all 250ms ease;
color: #5E5E5E;
}
.textarea_wrapper textarea:focus {
background: rgba(242, 56, 90, 0.05);
box-shadow: inset 2px 2px 5px 0 #DADADA;
outline: none;
}
.submit_wrapper {
text-align: center;
}
.submit_wrapper input {
text-align: center;
display: inline-block;
width: 40%;
height: 50px;
margin-top: 1em;
margin-bottom: 6px;
cursor: pointer;
background: #F2385A;
color: white;
font-family: Oswald ,sans-serif;
font-size: 1em;
border: none;
-webkit-box-shadow: 1px 1px 0 0 #832032,2px 2px 0 0 #832032,3px 3px 0 0 #832032;
box-shadow: 1px 1px 0 0 #832032,2px 2px 0 0 #832032,3px 3px 0 0 #832032;
-webkit-appearance: none;
  -webkit-transition: all 250ms ease;
-moz-transition: all 250ms ease;
-ms-transition: all 250ms ease;
-o-transition: all 250ms ease;
transition: all 250ms ease;
}
.submit_wrapper input:hover {
-webkit-box-shadow: 1px 1px 0 0 #832032,0px 0px 0 0 #832032,0px 0px 0 0 #832032;
box-shadow: 1px 1px 0 0 #832032,0px 0px 0 0 #832032,0px 0px 0 0 #832032;
margin-top: 22px;
margin-left: 2px;
margin-bottom: 0px;
}

@media (max-width: 500px){
#contact {
width: 100%;
}
  .input_wrapper label {
line-height: 3.5em;
font-size: 0.8em;
}
}
!

JS
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