.primera {
    position: absolute;
    top: 610px;
    left: 60px;
    z-index: 1;
    text-align: center;
}

.segunda {
    position: absolute;
    top: 610px;
    left: 60px;
    z-index: 3;
    opacity: 1;
}

.tercera {
    position: absolute;
    top: 630px;
    left: 60px;
    z-index: 2;
    opacity: 1;
}

table.tblhorario {
    border: silver 1px solid;
}

    table.tblhorario th {
        border: silver 1px solid;
    }

    table.tblhorario td {
        border: silver 1px solid;
    }


#contenido {
    width: 830px;
    height: 1200px;
}

ul.multiple {
    height: 135px;
    overflow: auto;
    width: 100%;
    border: 1px solid #000;
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

    ul.multiple > li {
        margin: 0;
        padding: 0;
    }

label {
    display: block;
    color: WindowText;
    background-color: Window;
    margin: 0;
    padding: 0;
    width: 100%;
}

    label:hover {
        background-color: Highlight;
        color: HighlightText;
    }

#week_selector {
    font-size: inherit;
    padding: 0 0 10px 0;
    width: 940px;
}

    #week_selector div {
        display: inline-block;
        _display: inline;
    }

#week_selector_pestanyas {
    font-size: inherit;
    /*padding: 10px 0 10px 0;*/
    /*margin-left: 30px;*/
    width: auto;
}

    #week_selector_pestanyas div {
        display: inline-block;
        _display: inline;
        top: 0px;
        /*left: 5px;*/
    }

#selector_semana_pestanyas li {
    display: inline;
    list-style-type: none;
}


.nav_next {
    margin: auto;
    position: relative;
    height: 17px;
    width: 29px;
    background-position: -241px 0;
    background-color: #E8E8E8;
    background-image: url(images/iconos_google.png);
    border-radius: 5px;
    cursor: pointer;
}

.nav_back {
    margin: auto;
    position: relative;
    height: 17px;
    width: 29px;
    background-position: -241px -17px;
    background-color: #E8E8E8;
    background-image: url(images/iconos_google.png);
    border-radius: 5px;
    -ms-border-radius: 5px;
    cursor: pointer;
}

.nav_week {
    margin: auto;
    position: relative;
    vertical-align: top;
    padding-top: 2px;
}

.zoom {
    cursor: pointer;
}

#tooltip {
    background: cornsilk;
    border: 1px solid black;
    padding: 20px;
    font-family: Arial, sans-serif;
    font-size: 11px;
    border-radius: 40px;
    width: 230px;
}