p
{
    color: blue;


}

h1
{
	text-align:center;
	
}
/*Reset CSS*/
*{
    margin: 0px;
    padding: 0px;
    font-family: Avenir, sans-serif;
}

nav{
    width: 100%;
    margin: 0 auto;
    background-color: white;
    position: sticky;
    top: 0px;
}

nav ul{
    list-style-type: none;
}

nav ul li{
    float: left;
    width: 25%;
    text-align: center;
    position: relative;
}

nav ul::after{
    content: "";
    display: table;
    clear: both;
}

nav a{
    display: block;
    text-decoration: none;
    color: black;
    border-bottom: 2px solid transparent;
    padding: 10px 0px;
}

nav a:hover{
    color: orange;
    border-bottom: 2px solid gold;
}

.sous{
    display: none;
    box-shadow: 0px 1px 2px #CCC;
    background-color: white;
    position: absolute;
    width: 100%;
    z-index: 1000;
}
nav > ul li:hover .sous{
    display: block;
}
.sous li{
    float: none;
    width: 100%;
    text-align: left;
}
.sous a{
    padding: 10px;
    border-bottom: none;
}
.sous a:hover{
    border-bottom: none;
    background-color: RGBa(200,200,200,0.1);
}
.deroulant > a::after{
    
    font-size: 12px;
}

.conteneur{
  margin: 50px 20px;
}

<----- Ici on modifie les attributs du formulaire de connexion ------>


body{
    background: #67BE4B;
}
#container{
    width:40px;
    margin:0 auto;
    margin-top:10%;
}
/* Bordered form */
form {
    position:absolute;
	left:10%;
	width:50%;
    padding: 300px;
    border: 1px solid #f1f1f1;
    background: #fff;
}
#container h1{
    width: 38%;
    margin: 0 auto;
    padding-bottom: 10px;
}

/* Full-width inputs */
input[type=text], input[type=password] {
    width: 100%;
    padding: 12px 20px;
    margin: 8px 0;
    display: inline-block;
    border: 1px solid #ccc;
    box-sizing: border-box;
}

/* Set a style for all buttons */
input[type=submit] {
    background-color: #53af57;
    color: white;
    padding: 14px 20px;
    margin: 8px 0;
    border: none;
    cursor: pointer;
    width: 100%;
}
input[type=submit]:hover {
    background-color: white;
    color: #53af57;
    border: 1px solid #53af57;
}