.estructura{
    position: relative;
    width: 100%;
    height: 100%;
    float: left;

}
.zona1{
    position: relative;
    width: 49.60%;
    height: 100%;
    float: left;

}
.listadoCentral{
    position: relative;
    //left: 50%;
    //margin-left: -550px;
    width: 100%px;
    height: 100%;
}
.zona2{
    position: relative;
    width: 49.60%;
    height: 100%;
    float: left;
}


.separadorZona2{
    position:relative;
    top: 45%;
    width: 100%;
    height: 40px;
    background-color: #ff9900;

}