.caja {
        font-family: Century Gothic,CenturyGothic,AppleGothic,sans-serif;
        color: #ffffff;
        font-size: 0px;
        font-weight: 200;
        text-align: center;
        background: #337AB7;
        margin: 0 0 25px;
        overflow: hidden;
        padding: 0px;
        border-radius: 30px 30px 30px 30px;
        -moz-border-radius: 30px 30px 30px 30px;
        -webkit-border-radius: 30px 30px 30px 30px;
        border: 2px solid #337AB7;
    }