.isimp1 .img_sinistra {
    float: left;
    margin: 5px 15px 15px 0;
    text-align: center;
}

.isimp1 .img_destra {
    float: right;
    margin: 5px 0 15px 15px;
    text-align: center;
}

.isimp1 .didascalia {
    color: #000;
    font-style: italic;
    overflow: hidden;
    margin: 5px 0 5px 0;
}

.isimp1 .intervento{
    font-size: 1em;
    max-width: 90%;
    text-align: left;
    padding: 25px 20px 20px;
    position: relative;
    border: 1px dashed #000;
    display: block;
    line-height: 1.5;
    margin: 30px auto;
}