.float {
box-sizing: border-box;
float: left;
width: 45%;
border: 1px solid black;
margin: 1%;
padding: 1%;
}
div:nth-of-type(2n+1) {
clear: left;
}
<div class="float">
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean nunc justo, efficitur eu nisl in, convallis aliquet sapien. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean
nunc justo, efficitur eu nisl in, convallis aliquet sapien.nunc justo, efficitur eu nisl in, convallis aliquet sapien.
</div>
<div class="float">
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean nunc justo, efficitur eu nisl in, convallis aliquet sapien. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean nunc justo, efficitur eu nisl in, convallis aliquet sapien.
</div>
<div class="float">
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean nunc justo, efficitur eu nisl in, convallis aliquet sapien. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean
nunc justo, efficitur eu nisl in, convallis aliquet sapien.nunc justo, efficitur eu nisl in, convallis aliquet sapien.
</div>
<div class="float">
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean nunc justo, efficitur eu nisl in, convallis aliquet sapien. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean nunc justo, efficitur eu nisl in, convallis aliquet sapien.
</div>
Meinen Sie in Zeilen oder so - http://stackoverflow.com/questions/8470070/how-to-create-grid-tile-view- with-css –
min-height einstellen funktioniert (aber jeder Container überschreitet min-height, dann wird er minimiert) –