.UIIFrameSource_default {
        margin: 0 0 10px 0;
        position: relative;
        max-width: 100%;
        box-sizing: border-box;
        padding-top: 0;
        min-height: 1000px;
}
.UIIFrameSource_default iframe{
        max-width: 100%;
	width: 100%;
        min-height: 1000px;
}

@media only screen and (max-width: 768px){
        .UIIFrameSource_default{
                width: calc(100% - 20px);
                margin: auto;
                margin-bottom: 10px;
        }
}