[devote]

<style>
    .wrap {
        display: table;
        table-layout: fixed;
        border-collapse: separate;
        border-spacing: 15px 0;
        width: 100%;
    }
    .wrap div {
        display: table-cell;
        border: 1px solid #000;
        margin-left: 15px;
    }
</style>
<div class="wrap">
   <div>1</div>
   <div>2345345</div>
   <div>3</div>
   <div>4</div>
</div>