React Card does not expand with search dropdown results

Question

As you can see the search results contain around ten items. However, the result set is cut off at the bottom of the div of class div-summary

How can I modify the div-summary such that the search result set is shown?

.div-summary{
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
    width: 25%;
    float:left;
    height: 100%;
    argin-top: 0px;
    margin-left: 2%;
    margin-bottom: 10px;
    display: inline;
}