main{font-size:calc(16px + 2*((100vw - 320px)/680))}h1{font-size:calc(28px + 4*((100vw - 320px)/680))}h2{font-size:calc(22px + 4*((100vw - 320px)/680))}.portail a img{width:calc(80px + 35*((100vw - 320px)/680));height:auto}header{background:url(/design/images/portal/header.jpg) center repeat-x;background-size:auto 100%}header img{width:400px;height:auto}.portail{background-image:url(/design/images/portal/logo.png),url(/design/images/portal/background_nologo.jpg);background-attachment:scroll,fixed;background-repeat:no-repeat;background-position:center 40%,top;background-size:30%,cover}.forum{max-width:180px !important;width:auto}.conf-content{background:url(/design/images/portal/bg-image-1.jpg) no-repeat top;background-size:cover;color:#fefefe;width:100% !important;text-align:center}.conf-content h2,.conf-content .fa{color:#a59469;text-shadow:2px 2px #301b00}.overlay{background-color:rgba(50,38,24,.6);height:100% !important;-webkit-box-shadow:0 0 15px 10px #1e160e;box-shadow:0 0 15px 10px #1e160e}footer{background:url(/design/images/portal/header.jpg) center repeat-x;background-size:auto 100%}footer a{color:#a59469;text-shadow:2px 2px #000;-webkit-transition:all .5s;transition:all .5s}footer a:hover{color:#301b00;text-shadow:2px 2px #a59469;-webkit-transition:all .3s;transition:all .3s}@media all and (max-width:768px){.portail{background-size:45%,cover}}@media all and (max-width:27em){.portail{background-size:60%,cover;background-position:center 35%,center}}