<div class="container">
    <div class="float">info<br/>info<br/>info</div>
    <div class="fluid">
        <div class ="fluidinner">
            <div class="text">one two</div>
            <div class="cleardiv"></div>
        </div>
    </div>
</div>

.float {
    background-color:pink;
    width:100px;
    float:left;
}
.fluid {
    background-color:#d3dadb;
    padding:5px;
}
.fluid2 {
    filter:progid:DXImageTransform.Microsoft.gradient( startColorstr='#d3dadb', endColorstr='#ffffff',GradientType=0 );
    padding:5px;
}
.fluidinner {
    background-color: gray;
}
.cleardiv {
    clear:both;
}