Três Div´s Alinhadas

by Angelo Rogério Rubin

HTML

<div id="container_global">
    <div id="container_um"></div>
    <div id="container_dois"></div>
    <div id="container_tres"></div>
</div>

CSS

#container_global {
    overflow: hidden;
    border: 1px solid red;
}

#container_um {
    overflow: hidden;
    border: 1px solid #CCC;
    width: 33.2%;
    float: left;
    height: auto;
    min-height: 100px;
}

#container_dois {
    overflow: hidden;
    border: 1px solid #CCC;
    width: 33.2%;
    float:left;
    height: auto;
    min-height: 100px;
}

#container_tres {
    overflow: hidden;
    border: 1px solid #CCC;
    width: 33.2%;
    float:left;
    height: auto;
    min-height: 100px;
}