filtrair.github.io/CSS principal.css at master · SkyZnox/filtrair.github.io · GitHub

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/*Reset CSS*/

html{
    background-color: #2F4F4F;
        background-image:url(http://getwallpapers.com/wallpaper/full/9/1/1/1153104-vertical-2550-x-1440-wallpaper-2560x1440.jpg);
    /*https://c.wallhere.com/photos/b9/ae/deer_animals_night_river_Moon_landscape-1213112.jpg!d*/
}
h1{
    text-align: center;
    color: white;
    background-color: #2F4F4F;
}
a
{
color: white;
text-decoration: none;
}
*{
    margin: 0px;
    padding: 0px;
    font-family: Avenir, sans-serif;
}

nav{
    width: 100%;
    margin: 0 auto;
    background-color: #2F4F4F;
    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: white;
    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: #2F4F4F;
    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{
    content:" ▼";
    font-size: 12px;
}

.conteneur{
  margin: 0px 300px;
    color: white;
  height: 2000px;
    text-align: justify;
 background-color: #696969;
  padding: 0 20px 20px 20px;
  border: 2px inset black;

}

.conteneur img{
    height: auto;
    width: 50;

}