html,body {
    margin:0; padding:0;
}
body {
    color:#18367a;
    font-family: 'Montserrat', Arial, Helvetica, sans-serif;
}
a {
    font-family: inherit;
}
img {
    max-width: 100%;
}
main {
    background: url(content_bg.jpg);
    background-size: 100% auto;
    background-position: top center;
    background-repeat: no-repeat;
    background-color: #fff;
    padding: 30px 0;
}
header {
    width:100%;
    text-align:center;
    background-color:#18367a;
}
nav {
    position:relative;
    background-color:#064fa1;
}
.nav-list {
    display: flex;
    align-items: center;
    justify-content: center;
}
nav::before {
    content: '';
    position: absolute;
    top:0;
    height: 1px;
    left: 0;
    right: 0;
    background: linear-gradient(to right, transparent, #fff, transparent)
}
nav a {
    display: block;
    padding: 15px 20px;
    text-transform: uppercase;
    transition: color 0.15 ease-in-out;
}
nav a:hover {
    color: rgba(250,250,250, 0.65);
}
nav a, nav a:visited {
    color:#fff;
    text-decoration:none;
}
nav a.active {
    position: relative;
}
nav a.active::after {
    content: '';
    width: 0;
    height: 0;
    display: block;
    margin: 0 auto;
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-top: 10px solid #064fa1;
    position: absolute;
    bottom: 0;
    right: 0;
    left: 0;
    transform: translateY(100%);
}
.container {
    box-sizing: border-box;
    margin:0 auto;
    max-width: 100%;
    width:980px;
}
.plaques-list {
    display: flex;
    flex-wrap: wrap;
    list-style-type: none;
    padding: 0;
}
.plaque {
    flex-basis: 33%;
    position: relative;
    padding-top: 2rem;
    padding-bottom: 2rem;
}
.plaque img {
    cursor:pointer;
    transition: box-shadow 0.15s ease-in-out, transform 0.15s ease-in-out;
}
.plaque img:hover {
    border-radius:7px;
    -moz-box-shadow:0 0 10px 0px rgba(0,0,0,0.25);
    -webkit-box-shadow:0 0 10px 0px rgba(0,0,0,0.25);
    box-shadow:0 0 10px 0px rgba(0,0,0,0.25);
    behavior:url(ie-css3.htc);
    transform: translateY(-2px);
    /* For IE 8 */
    /*-ms-filter: "progid:DXImageTransform.Microsoft.Shadow(Strength=4, Color='#000000')";*/
    /* For IE 5.5 - 7 */
    /*filter: progid:DXImageTransform.Microsoft.Shadow(Strength=4, Color='#000000');*/
}
.year {
    color: #071743;
    font-size: 2rem;
    font-weight: bolder;
    /* font-family: 'Russo One', Impact, sans-serif; */
    position: absolute;
    top: -0.25rem;
    left: 0;
}
.year::before {
    content: '>';
    color: #0c64c1;
    display: inline-block;
    margin-right: 5px;
}
#overlay {
    top:0;
    left:0;
    z-index:5;
    opacity:0;
    width:100%;
    height:100%;
    opacity:0.75;
    display:none;
    position:absolute;
    background-color:#000;
}

#detail {
    top:0;
    z-index:10;
    /*width:430px;
    height:650px;*/
    width:472px;
    height:715px;
    display:none;
    position:absolute;
}
#close {
    left:345px;
    bottom:48px;
    display:none;
    cursor:pointer;
    text-align:right;
    position:absolute;
    text-transform:small-caps;
    color: #fff;
    bottom: 0;
    right: 0;
}
#content {
    font-size:12px;
    text-transform:none;
    background: #fff;
    border: 1px solid #ccc;
    box-shadow: -1px 1px 10px rgba(0,0,0,0.05);
    padding: 20px;
}
#partenaires {
    margin-top:20px;
    margin-bottom:20px;
    text-align:center;
}
.ie7 #partenaires, .ie8 #partenaires{
    padding:28px 0 5px 0;
}

#partenaires .container {
    background-color: #fff;
    border: 1px solid #ccc;
    box-shadow: -1px 1px 10px rgba(0,0,0,0.05);
    padding: 15px;
}

@media (max-width: 767.98px) {
    header nav {
        overflow-x: scroll;
        position: relative;
    }
    .nav-list {
        justify-content: flex-start;
    }
    .nav-list::after {
        content :'';
        background: linear-gradient(to left, #064fa1, transparent);
        position:absolute;
        width: 20px;
        top: 0;
        bottom: 0;
        right: 0;
    }
    .nav-list a {
        white-space: nowrap;
    }
}

@media screen and (min-width: 992px) {
    .plaque {
        flex-basis: 20%;
    }
}