body {
            margin: 0px;
            width: 100%;
            background: white;
            font-family: Arial;
        }

        footer {    
            padding: 10px;
            box-sizing: border-box;    
            border-top: 1px solid #e2e2e2;
            border-bottom: 1px solid #e2e2e2;
            color: #949494;
            text-align: center;
            font-size: 12px;
            position: relative;
            background: whitesmoke;
        }

        html {
            width: 100%;
        }

        a {
            transition: .7s;
            color: #03a3ea;
        }

        a:hover {
            color: #949494;
        }

        sub {
            font-size: 10px;
        }

        .group:before {
            content: "";
            border-left: 0px solid transparent;
            border-bottom: 100px solid rgba(0,0,0,0.1);
            border-right: 50px solid transparent;
            border-top: 0px solid transparent;
            z-index: 0;
            position: absolute;
            left: -100px;
            top: 0px;
            width: auto;
            height: auto;
            padding-left: 50px;
            transition: .3s;
        }

        .group:hover:before {
            left: 0px;
        }

        .group.focus-group:after {
            bottom: -10px;
        }

        .group:after {
            content: "";
            width: 0px;
            height: 0px;
            border-left: 10px solid transparent;
            border-right: 10px solid transparent;
            border-top: 10px solid transparent;
            position: absolute;
            bottom: 0px;
            left: 0;
            right: 0;
            margin: auto;
            transition: .7s;
            z-index: 2;
        }

        .wrapper {
            transition: .7s;
        }

        .info {
            position: relative;
        }

        .info .close {
            background: whitesmoke;
            border-radius: 100%;
            border: 2px solid #bbbbbb;
            width: 30px;
            height: 30px;
            position: absolute;
            right: 20px;
            top: 20px;
            color: #bbbbbb;
            cursor: pointer;
            font-weight: bold;
            transition: .7s;
            text-align: center;
            vertical-align: text-bottom;
            line-height: 30px;
            z-index: 1;
        }

        .info .close:hover {
            color: #ef2929;
            border: 2px solid #ef2929;
        }

        .focus {
            transform: scale(1.2, 1.2);
            z-index: 9;
            position: relative;
            box-shadow: rgba(0, 0, 0, 0.3) 0px 0px 30px 5px inset !important;
        }

        div.no-focus, div.no-focus .group {
            background: #e0e0e0;
            color: darkgray;
        }

        .no-focus .atomic-number:before {
            color: darkgray !important;
        }

        .bottom {
            margin-top: 10px;
        }

        .array {
            box-sizing: border-box;
            padding: 20px;
        }

        .group {
            max-width: 107px;
            min-height: 103px;
            max-height: 103px;
            border-collapse: collapse;
            border: 1px solid white;
            float: left;
            display: inline-block;
            box-sizing: border-box;
            padding: 10px;
            font-family: arial;
            width: 7%;
            flex: 1 1;
            display: flex;
            flex-direction: column;
            position: relative;
            transition: .7s;
            transform-origin: center;    
            box-shadow: none;
            overflow: hidden;
        }

        .group:hover {
            /*transform: scale(1.5, 1.5);*/
			transform: scale(3, 3);
            z-index: 9;
            position: relative;
            cursor: url(/img/cursor-help.png), auto;
        }

        .group:hover:after {
            bottom: 10px !important;
            border-top: 10px solid transparent !important;
        }

        .group.no-focus:hover {
            color: black !important;
        }

        .group.no-focus.focus-group:after {
            border-top-color: #e0e0e0;
        }

        .group:first-of-type {
            transform-origin: left;
        }

        .group:last-of-type {
            transform-origin: right;
        }

        .period:first-of-type .group:last-of-type {
            transform-origin: right top;
        }

        .period:first-of-type .group:first-of-type {
            transform-origin: left top;
        }

        .group.empty {
            border-color: transparent;
            pointer-events: none;
        }

        .group.empty:hover {
            transform: scale(1);
            z-index: 1;
            box-shadow: none;
        }

        .other-nonmetals, .other-nonmetals.no-focus:hover  {
            background: #76FF03;
        }

        .noble-gases, .noble-gases.no-focus:hover  {
            background: #df5ff5;
        }

        .halogens, .halogens.no-focus:hover  {
            background: #18FFFF;
        }

        .metalloids, .metalloids.no-focus:hover  {
            background: #00E676;
        }

        .alkaline-earth-metals, .alkaline-earth-metals.no-focus:hover  {
            background: #eaea18;
        }

        .alkali-metals, .alkali-metals.no-focus:hover  {
            background: #f7a91d;
        }

        .transition-metals, .transition-metals.no-focus:hover  {
            background: #ff3e7f;
        }

        .post-transition-metals, .post-transition-metals.no-focus:hover  {
            background: #40C4FF;
        }

        .lanthanoids, .lanthanoids.no-focus:hover  {
            background: #fd6d3f;
        }

        .actinoids, .actinoids.no-focus:hover  {
            background: #ff1744;
        }

        #six .lanthanoids, #seven .actinoids {
            justify-content: center;
        }

        #six .lanthanoids .atomic-number, #seven .actinoids .atomic-number {
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .element-symbol {
            font-size: 1.5em;
        }

        .atomic-number {
            font-size: 1.2em;
        }

        .atomic-orbital-shells {
            float: right;
            font-size: 10px;
            display: flex;
            flex-direction: column;
            flex: 0;
            position: absolute;
            right: 10px;
        }

        .atomic-orbital-shells span {
            display: block;
            text-align: right;
            line-height: 10px;
        }

        .element-name, .atomic-mass {
            font-size: 11px;
            flex: 1 1;
            align-items: flex-end;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: normal;
            display: inline-block;
            max-width: 85%;
        }

        .period {
            display: block;
            clear: both;
            display: flex;
            justify-content: space-around;
            align-items: stretch;
        }

        .break {
            height: 30px;
        }

        .category .active:after {
            content: "";
            width: 5px;
            height: 5px;
            background: #00c300;
            border: 2px solid white;
            transition: .7s;
        }

        .category div:after {
            content: "";
            width: 0px;
            height: 0px;
            border: 3px solid transparent;
            transition: .7s;
            position: absolute;
            display: block;
            border-radius: 100%;
            margin: auto;
            background: transparent;
            right: 3px;
            bottom: 2px;
        }

        .category {
            display: flex;
            justify-content: center;
            position: absolute;
            right: 0;
            left: 0;
            font-family: arial;
        }

        .category div {
            padding: 10px;
            box-sizing: border-box;
            border: 1px solid white;
            z-index: 9;
            transition: .7s;
            transform-origin: top;
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }

        .category div:hover {
            transform: scale(1.2, 1.2);
            z-index: 10;
        }

        .category div:before {
            content: "";
            border-left: 0px solid transparent;
            border-bottom: 100px solid rgba(0,0,0,0.1);
            border-right: 50px solid transparent;
            border-top: 0px solid transparent;
            z-index: 0;
            position: absolute;
            left: -100px;
            top: 0px;
            width: auto;
            height: auto;
            padding-left: 50px;
            transition: .3s;
        }

        .category div:hover:before {
            left: 0px;
        }

        #one .group:first-child,#one .group:last-child {
            z-index: 2;
            position: relative;
        }

        .characteristic {
            display: flex;
            justify-content: center;
            position: absolute;
            right: 0;
            left: 0;
            top: 50px;
            z-index: 1;
            font-family: arial;
            justify-content: space-between;    
            width: 100%;
            margin: auto;
            max-width: 1240px;
        }

        .characteristic .non-metals {
            flex: 0 28%;
            max-width: 348px;
        }

        .characteristic div {
            text-align: center;
            padding: 5.5px 0px;
            box-sizing: border-box;
            position: relative;
            border: 2px solid black;
            border-top: 0px;
            justify-content: center;
            display: flex;
        }

        .characteristic div span {
            position: absolute;
            left: auto;
            right: auto;
            background: white;
            width: auto;
            padding: 5px;
            box-sizing: border-box;
            top: 0;
        }

        .characteristic .metals {
            flex: 0 65%;
            max-width: 804px;
        }

        .card .element-name {
            text-overflow: initial;
            max-width: none;
        }

        div#lanthanide-series .group:nth-child(2):after {
            content: "Ln Series";
        }

        div#actinide-series .group:nth-child(2):after {
            content: "An Series";
        }

        div#lanthanide-series .group:nth-child(2):before, div#actinide-series .group:nth-child(2):before {
            display: none;
        }

        @media(max-width: 1700px) {

            .atomic-mass {
                max-width: none;
                font-size: 9px;
            }

            .atomic-number {
                font-size: 15px;
            }

            .element-name {
                font-size: 9px;
            }

            .atomic-orbital-shells {
                display: none;
            }

        }

        @media(max-width: 1500px) {

            .atomic-mass {
                display: none;
            }

            .group {
                width: 5%;
                min-height: 85px;
            }

            .atomic-orbital-shells {
                display: none;
            }

            .category div {
                font-size: 0px;
                padding: 7px 20px;
                position: relative;
            }

            .characteristic {
                max-width: 420px;
                top: 20px;
            }

            .characteristic .non-metals {
                max-width: 125px;
                flex: 0 30%;
            }

            .characteristic .metals {
                flex: 0 60%;
                max-width: 252px;
            }

            .characteristic div span {
                font-size: 12px;
            }

        }

        @media(max-width: 1300px) {

            .atomic-number {
                font-size: 11px;
                text-align: right;
            }

            .element-name {
                display: none;
            }

            .group {
                min-height: inherit;
            }

            .element-symbol strong {
                font-weight: 300;
            }

            div#lanthanide-series .group:nth-child(2):before, div#actinide-series .group:nth-child(2):before {
                position: absolute;
                right: 10px;
                top: 25px;
            }

            div#lanthanide-series .group:nth-child(2), div#actinide-series .group:nth-child(2) {
                position: relative;
            }

            div#lanthanide-series .group:nth-child(2):before, div#actinide-series .group:nth-child(2):before {
                position: absolute;
                right: 10px;
                top: 25px;
            }

            div#lanthanide-series .group:nth-child(2):after, div#actinide-series .group:nth-child(2):after {
                display: block;
                font-size: 12px;
                right: 5px;
                border: 0px;
                width: auto;
                height: auto;
                left: auto;
                bottom: 20px;
            }

        }

        @media(max-width: 1024px) {

            .atomic-number {
                font-size: 12px;
            }

            .element-symbol {
                text-align: center;
            }

        }

        @media(max-width: 980px) {

            .element-symbol {
                font-size: 20px;
            }   

            .element-symbol {
                font-size: 15px;
                text-align: left;
            }

            .atomic-number {
                font-size: 9px;
            }

        }

        @media(max-width: 768px) {

            .group {
                padding: 5px;
            }

            div#lanthanide-series .group:nth-child(2):before, div#actinide-series .group:nth-child(2):before {
                top: 15px;
            }

            div#lanthanide-series .group:nth-child(2):after, div#actinide-series .group:nth-child(2):after {
                font-size: 15px;
                width: 100%;
                text-align: center;
            }

            div#lanthanide-series .group:nth-child(2):after {
                content: "Ln";
            }

            div#actinide-series .group:nth-child(2):after {
                content: "An";
            }

            .characteristic div {
                padding: 3px 0px;
                height: 5px;
            }

            .characteristic div span {
                font-size: 12px;
                top: -5px;
            }

            .category .active:after {
                width: 10px;
                height: 10px;
            }

            footer > div span:last-of-type {
                font-size: 10px;
                display: block;
            }

            footer > div span:nth-child(2) {
                display: none;
            }

            .card .element-name {
                font-size: 25px;
            }

        }

       @media (max-width: 600px) {
    /* Oculta todas las propiedades excepto el símbolo del elemento */
    .atomic-number,
    .element-name,
    .atomic-mass,
    .atomic-orbital-shells {
        display: none; /* Oculta estas propiedades en pantallas pequeñas */
    }

    .element-symbol {
        font-size: 1.5em; /* Aumenta un poco el tamaño del símbolo */
        text-align: center;
    }

    .group {
        width: 10%; /* Ajusta el tamaño del contenedor */
        min-height: 50px; /* Ajusta el alto del contenedor */
        max-height: 50px;
        padding: 10px; /* Reduce el relleno */
        display: flex;
        justify-content: center;
        align-items: center;
    }
}


        @media(max-width: 500px) {

            div#lanthanide-series .group:nth-child(2):after, div#actinide-series .group:nth-child(2):after {
                display: none;
            }

            .group .element-symbol {
                font-size: 0px;
            }

            #six .lanthanoids .atomic-number:before, #seven .actinoids .atomic-number:before {
                top: 2px;
                font-size: 12px;
            }

            .group {
                min-height: 25px;
                max-height: 25px;
            }

            div#lanthanide-series .group:nth-child(2):before, div#actinide-series .group:nth-child(2):before {
                top: 8px;
                font-size: 12px;
            }

            #six .lanthanoids .atomic-number:before,#seven .actinoids .atomic-number:before {
                top: 3px;
                font-size: 15px;
            }

            .array {
                padding-top: 30px !important;
            }

            .group:after {
                border-left: 5px solid transparent !important;
                border-right: 5px solid transparent !important;
                border-top-width: 8px !important;
                bottom: -8px !important;
            }

        }

       @media (max-width: 400px) {
    .group {
        width: 12%; /* Aún más pequeño para dispositivos extremadamente pequeños */
        min-height: 40px;
        max-height: 40px;
        padding: 5px;
    }

    .element-symbol {
        font-size: 1.2em; /* Ajusta el tamaño del símbolo en pantallas muy pequeñas */
    }
}

        @media(max-width: 350px) {

            .category {
                justify-content: space-between;
            }

            .category div {
                flex: 1 1;
                padding: 5px 0px;
            }

            .characteristic {
                max-width: none;
            }

            .characteristic .non-metals {
                max-width: none;
                flex: 0 30%;
            }

            .characteristic .metals {
                max-width: none;
            }

        }
		
/* Ajusta el tamaño de las banderas */
.flag {
    width: 40px; /* Ajusta el tamaño según sea necesario */
    height: auto; /* Mantiene la proporción */
    margin: 0 10px; /* Añade margen lateral entre las banderas */
}

/* Estilo general para la navegación */
nav ul {
    list-style: none; /* Elimina los puntos de lista */
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center; /* Centra las banderas horizontalmente */
    gap: 20px; /* Ajusta el espacio entre banderas */
}

/* Ajusta los elementos de la lista */
nav ul li {
    display: inline-block;
    margin: 0 10px; /* Espaciado lateral entre los elementos */
}