#contenedor{
    text-align:left;
    margin:0px auto;
    width:100%;
    }
    
body{
    background-color:black;
    text-align:left;    
    margin:auto;
    margin-top:10px;
    }
    
#ladera{
    width:200px;
    height:885px;
    background-color:#445057;
    float:left;
    display:none;
    }
    


#ladera_edi{
    width:200px;
    height:1250px;
    background-color:#445057;
    float:left;
        display:none;
    }

#ladera_expP{
    width:200px;
    height:600px;
    background-color:#445057;
    float:left;
        display:none;
    }
    
#ladera_exp{
    width:200px;
    height:2340px;
    background-color:#445057;
    float:left;
        display:none;
    }
    
#ladera_biblio{
    width:200px;
    height:3030px;
    background-color:#445057;
    float:left;
        display:none;
    }
    
#ladera_pint{
    width:200px;
    height:1670px;
    background-color:#445057;
    float:left;
        display:none;
    }
    
#ladera_mus{
    width:200px;
    height:1320px;
    background-color:#445057;
    float:left;
        display:none;
    }
    
#ladera_expC{
    width:200px;
    height:6020px;
    background-color:#445057;
    float:left;
        display:none;
    }
    
    
#ladera_expI{
    width:200px;
    height:3490px;
    background-color:#445057;
    float:left;
        display:none;
    }
    
#caja_bio{
    width:600px;
    height:600px;
    float:left;
    /*background-color:#555454;*/
    }
    
#bajos{
    width:820px;
    /*margin-top:10px;*/
    border-style:solid;
    border-color:#363636;
    border-width:1px;
    color:white;
    text-align:left;
    font-family:verdana,arial;
    font-size:8pt;
    padding:2 0 2 0px;
     font-weight:normal;
     background-color:#445057;
     float:left;
     margin-left:3px;
    }
    
#bajos2{
    width:800px;
    /*margin-top:10px;*/
    border-style:solid;
    border-color:#363636;
    border-width:1px;
    color:white;
    text-align:left;
    font-family:verdana,arial;
    font-size:8pt;
    padding:2 0 2 20px;
     font-weight:normal;
     background-color:#363636;
    }
    
#pinturas{
    width:800px;
    text-align:left;
    padding:0px;
    }
    
#mando{
     background-color:#445057;
    padding:5px 0px 0px 0px;
    text-align:center;
    width:400px;
    margin:30px;
    display:none
    }