Something along these lines in the custom/custom.css file or Custom CSS tab in theme options panel can help (will work with thumbnail images only – not videos or sliders) –
.default-list .image-area {
display: block;
margin: 0;
width: 50%;
float: left;
}
.default-list .entry-text-wrap {
clear: none;
width: 40%;
float: left;
}
#content .hentry .entry-summary {
margin: 0;
padding-left: 8%;
}
/* Smaller Tablets and smartphones */
@media only screen and (max-width: 767px) {
#content .image-area, .default-list .entry-text-wrap {
float: none;
width: 100%;
}
#content .hentry .entry-summary {
padding: 0;
}
}