*{
    font-family: Arial, Helvetica, sans-serif;
    color: white;
}


p {
    font-size: 22px;
}

a {
    font-size: 22px;
    color: #ffffff;
}

h1 {
    font-size: 42px;
}

h2 {
    font-size: 32px;
}

h1, h2, h3{
    text-align: center;
}

body{
    padding: 0;
    margin: 0;
    background-color: #ffffff;
}

div.header{
    margin: 0;
    /*background-color: #1c2c41;*/
    /*background: linear-gradient(to bottom left, #1c2c41, #111d2c);*/
    background-image: url("../images/background.jpg");
    background-size: cover;
    padding: 25px;
    color: white;
    text-shadow: #000 0px 0px 4px,   #000 0px 0px 4px,   #000 0px 0px 4px,
             #000 0px 0px 4px,   #000 0px 0px 4px,   #000 0px 0px 4px;
}

div.header-home{
    height: 60vh;
}

nav
{
    position: sticky;
    top: 0;
    z-index: 2;
}

ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: row;
    justify-content: center;
    background-color: #202020;
    border-radius: 0px;
}

ul li a {
    display: block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
    margin: 2px 5px;
    font-weight: lighter;
}

ul li a.active
{
    color: white;
    border-radius: 10px;
    font-weight: bolder;
}

ul li a:hover {
    color: gray;
    border-radius: 10px;
}

footer
{
    background-color: #202020;
    padding-bottom: 10px;
    padding-top: 10px;
    color: white;
    text-align: center;
    position: sticky;
    bottom: 0;
    left: 0;
    right: 0;
}

div.content
{
    background: linear-gradient(to bottom left, #6665DD, #473BF0);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 50px;
    margin: 0px 50px;
}


div.content-video
{
    background: linear-gradient(to bottom left, #6665DD, #473BF0);
    display: flex;
    justify-content: space-between;
    flex-direction: column;
    align-items: center;
    padding: 0px 50px;
    margin: 0px 50px;
    width: 512px;
    align-self: center;
    justify-content: center;
    justify-self: center;
}

.centered
{
    text-align: center;
    justify-content: center;
    justify-self: center;
}

hr {
  border: none;
  border-top: 3px double #ffffff;
  color: #ffffff;
  overflow: visible;
  text-align: center;
  height: 5px;
}

ul.tarifs{
    background-color: transparent;
    list-style-type: none;
    display: block;
    font-size: 22px;
}

ul li.menu-float-right {
    /*position: absolute;*/ 
    right: 50px; 
    float: right;
}

ul li.logo{
    position: absolute; 
    left: 10px; 
    float: left; 
    height: 50px; 
    vertical-align: center;
}

.chair-image{
    width: 50%; 
    max-width: 512px; 
    padding-left: 12%;
}

.image-attestation{
    width: 50%; 
    margin: 0px 10px; 
    max-width: 512px;
}

.faq-video{
    width: 100%; 
    max-width: 20%; 
    height: 100%; 
    object-fit: cover; 
    border-radius: 25px; 
    margin-left: 10px; 
    position: sticky; 
    top: 100px; 
    bottom: 100px; 
    z-index: 0;
}

.presentation-image{
    margin: 0px 0px;
    max-height: 350px;
    width: 25%;
    object-fit: scale-down;
    justify-self: center;
}

.images-row{
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding: 50px;
    margin: 0px 50px;
}

a.avis{
    background-color: #473BF0;
    color: white;
    border: none;
    padding: 18px 64px;
    font-weight: bolder;
    font-size: 32px;
    text-align: center;
    justify-self: center;
    text-decoration: none;
    display: inline-block;
    border-radius: 10px;
    cursor: pointer;
}

a.avis:hover{
    background-color: #8aa9d1;
}

a.avis:active{
    background-color: #110a69;
}

/* Tablet Screen */
@media screen and (max-width:1200px){

    p, a{
    font-size: 18px;
    }

    h1 {
        font-size: 38px;
    }

    h2 {
        font-size: 28px;
    }

    div.content{
        flex-direction: column;
    }

    .chair-image{
        width: 95%; 
        max-width: unset;
        padding-left: unset;
    }

    .image-attestation{
        width: 95%; 
        margin: 0px 10px; 
        max-width: unset;
    }

    .faq-video {
        width: unset; 
        max-width: 100%; 
        height: unset; 
        object-fit: unset; 
        border-radius: 25px; 
        margin-left: unset; 
        position: unset; 
        top: unset; 
        bottom: unset; 
        z-index: unset;
    }

    .presentation-image{
        padding-left: unset; 
        height: unset;
        width: 25%;
    }

    ul li.logo{
        height: 0px; 
        visibility: hidden;
    }

    ul li.menu-float-right{
        position: unset;
        right: unset;
        float: unset;
    }
    
    div.header-home {
        height: unset;
    }

}

/* Phone Screen */
@media screen and (max-width:800px){

    p, a{
    font-size: 18px;
    }

    h1 {
        font-size: 38px;
    }

    h2 {
        font-size: 28px;
    }

    ul li a {
        padding: 4px 8px;
        margin: 4px 8px; 
    }  

    div.content{
        flex-direction: column;
    }

    .chair-image{
        width: 95%; 
        max-width: unset;
        padding-left: unset;
    }

    .image-attestation{
        width: 95%; 
        margin: 0px 10px; 
        max-width: unset;
    }

    .faq-video{
        width: unset; 
        max-width: 100%; 
        height: unset; 
        object-fit: unset; 
        border-radius: 25px; 
        margin-left: unset; 
        position: unset; 
        top: unset; 
        bottom: unset; 
        z-index: unset;
    }

    .presentation-image{
        padding-left: unset; 
        height: 0px;
        visibility: hidden;
    }
    
    ul li.logo{
        position: unset; 
        left: unset; 
        float: unset; 
        height: unset; 
        vertical-align: unset;
        visibility: hidden;
        height: 0px;
    }

    ul{
        display: flex;
        flex-direction: column;
    }

    ul li.menu-float-right{
        position: unset;
        right: unset;
        float: unset;
    }

    .images-row {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        align-items: center;
        padding: unset;
        margin: unset;
    }

    div.header-home {
        height: unset;
    }

    div.content
    {
        margin: 0px 0px;
    }


    div.content-video
    {
        margin: 0px 0px;
    }
}