.w3-dark-grey, .w3-hover-dark-grey:hover, .w3-dark-gray, .w3-hover-dark-gray:hover {
    color: #fff !important;
    background-color: #616161 !important;
}
.w3-btn:hover, .w3-btn-block:hover, .w3-btn-floating:hover, .w3-btn-floating-large:hover {
    box-shadow: 0 8px 16px 0 rgba(0,0,0,0.2),0 6px 20px 0 rgba(0,0,0,0.19);
}
.w3-display-right {
    position: absolute;
    top: 50%;
    right: 0%;
    transform: translate(0%,-50%);
    -ms-transform: translate(0%,-50%);
}
.w3-display-left {
    position: absolute;
    top: 50%;
    left: 0%;
    transform: translate(0%,-50%);
    -ms-transform: translate(-0%,-50%);
}
.w3-btn, .w3-btn-floating, .w3-dropnav a, .w3-btn-floating-large, .w3-btn-block, .w3-navbar a, .w3-navblock a, .w3-sidenav a, .w3-pagination li a, .w3-hoverable tbody tr, .w3-hoverable li, .w3-accordion-content a, .w3-dropdown-content a, .w3-dropdown-click:hover, .w3-dropdown-hover:hover, .w3-opennav, .w3-closenav, .w3-closebtn, [class*="w3-hover-"] {
    -webkit-transition: background-color .25s,color .15s,box-shadow .25s,opacity 0.25s,filter 0.25s,border 0.15s;
    transition: background-color .25s,color .15s,box-shadow .15s,opacity .25s,filter .25s,border .15s;
}

.w3-btn, .w3-btn-floating, .w3-btn-floating-large, .w3-closenav, .w3-opennav, .w3-btn-block, .w3-button {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}
a {
    color: inherit;
}
a {
    background-color: transparent;
    -webkit-text-decoration-skip: objects;
}

.w3-black, .w3-hover-black:hover {
    color: #fff !important;
    background-color: #000 !important;
}
.w3-container {
    padding: 0.01em 16px;
}
.w3-padding-16 {
    padding-top: 16px !important;
    padding-bottom: 16px !important;
}
.w3-display-bottomleft {
    position: absolute;
    left: 0;
    bottom: 0;
}
.w3-large {
    font-size: 18px !important;
}
.w3-dark-grey, .w3-hover-dark-grey:hover, .w3-dark-gray, .w3-hover-dark-gray:hover {
    color: #fff !important;
    background-color: #616161 !important;
}
a:active, a:hover {
    outline-width: 0;
}
.w3-btn-floating {
    width: 40px;	/*taille fléche*/
    height: 40px;
    line-height: 40px;
}
.w3-btn-floating, .w3-btn-floating-large {
    display: inline-block;
    text-align: center;
    color: #fff;
    background-color: #000;
    overflow: hidden;
    z-index: 1;
    padding: 0;
    border-radius: 50%;
    cursor: pointer;
    font-size: 24px;
}