@media only screen and (min-width: 800px) and (max-width: 950px) {
    #home .container {
        padding: 55px 30px;
    }
    #menu ul li a {
        padding: 0 20px;
    }
    #about ul li {
        width: 220px;
        float: none;
        display: table;
        margin: 0 auto;
    }
    #speakers .avatar li:nth-child(5n+1)
    #supporting .avatar li:nth-child(5n+1),
    #sponsors .other .avatar li:nth-child(5n+1) {
        margin-left: 100px;
    }
    #speakers .avatar li:nth-child(3n+3),
    #supporting .avatar li:nth-child(3n+3),
    #sponsors .other .avatar li:nth-child(3n+3) {
        clear: both;
    }
    #speakers .avatar li:nth-child(8n+8),
    #speakers .avatar li:nth-child(11n+11),
    #speakers .avatar li:nth-child(13n+13),
    #supporting .avatar li:nth-child(8n+8),
    #supporting .avatar li:nth-child(11n+11),
    #supporting .avatar li:nth-child(13n+13),
    #sponsors .other .avatar li:nth-child(8n+8),
    #sponsors .other .avatar li:nth-child(11n+11),
    #sponsors .other .avatar li:nth-child(13n+13) {
        clear: both;
    }
    #speakers .avatar li:nth-child(9n+9),
    #speakers .avatar li:nth-child(12n+12),
    #supporting .avatar li:nth-child(9n+9),
    #supporting .avatar li:nth-child(12n+12),
    #sponsors .other .avatar li:nth-child(9n+9),
    #sponsors .other .avatar li:nth-child(12n+12) {
        clear: inherit;
    }
    #speakers .avatar li:last-child,
    #supporting .avatar li:last-child {
        margin-left: 190px;
    }
    #sponsors .other .avatar li:last-child {
        clear: inherit;
    }
}

@media only screen and (min-width: 950px) {
    .avatar li:nth-child(5n) {
        clear: both;
    }
    .avatar li:nth-child(9n+1) {
        margin-left: 100px;
    }
    .item .avatar li:nth-child(9n+1) {
        margin-left: 10px;
    }
    .item.other .avatar li:nth-child(9n+1) {
        margin-left: 100px;
    }
    #speakers .avatar li:nth-child(14) {
        clear: both;
        margin-left: 190px;
    }
    #speakers .avatar li:nth-child(15) {
        clear: inherit;

    }
    #sponsors .avatar li:nth-child(14) {
        clear: both;
        margin-left: 10px;
    }
    #sponsors .avatar li:nth-child(15) {
        clear: inherit;

    }
    #sponsors .avatar li:nth-child(19) {
        margin-left: 100px;
        clear: both;
    }
    #sponsors .avatar li:nth-child(20) {

        clear: inherit;
    }

}

@media only screen and (max-width: 800px) {
    #home .container {
        padding: 55px 20px;
    }
    #about .container {
        padding-left: 10px;
        padding-right: 10px;
    }
    #about ul li {
        clear: both;
    }
    #about ul li:nth-child(2) {
        margin: 0;
    }
    #home .info .hexagon {
        display: none;
    }
    #home .info {
        text-align: center;
    }
    #home .info .summary {
        left: auto;
    }
    #home .info .left {
        overflow: inherit;
    }
    #home .info .right {
        position: inherit;
        width: 100%;
        margin: 10px 0 0 0;
    }
    #home .info .right .summary {
        text-align: center;
        left: 5px;
    }
    #home .info .right .summary .top,
    #home .info .right .summary .middle {
        display: none;
    }
    #home .info span a {
        margin: 40px 0 0 0;
        border: 1px solid #ff8500;
        padding: 10px 20px;
        color: #ff8500;
        display: block;
    }
    #menu {
        display: none;
    }
    .avatar li {
        clear: both;
        margin-bottom: 110px;
    }
    #contact img {
        width: 100%;
    }
}