container inline-block width
HTML
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="ib">
<div class="b">
<div class="b" id="my_content">
<div>
<div>
</div>
CSS
.ib {
display: inline-block;
}
.b {
display: block;
}
#my_content {
width: 100%;
min-width: 100%;
}
JavaScript
$(document).ready(function () {
alert($("#my_content").width());
});