.box_scale {
    width: 100%;
    height: 100%;
    -webkit-transform: scale(1); /* Saf3.1+, Chrome */
    -moz-transform: scale(1); /* FF3.5+ */ /*scale(0.9);*/
    -ms-transform: scale(1); /* IE9 */
    -o-transform: scale(1); /* Opera 10.5+ */
    transform: scale(1);
    filter: progid:DXImageTransform.Microsoft.Matrix( /* IE6–IE9 */
    M11=0.9999619230641713, M12=-0.008726535498373935, M21=0.008726535498373935, M22=0.9999619230641713,SizingMethod='auto expand');
}

.iframe_survey {
    font-size: small;
    width: 100%;
    frameborder: 0;
    scrolling: no;
    height: 540px;
}