The easiest solution is to use Flexbox (see the description for use for details).
In this particular case, assign a custom class for each of your content containing the div (currently it only has .col-md-11 ), for example the "content" class, and add this code to the stylesheet
.content { display: flex; align-items: center; flex-wrap: wrap; }
Explanation of the small code: align-items aligns the elements vertically, since we left the default direction of flexibility, which is a string, and flex-wrap will allow our parent container to flex-wrap children on the next line ( nowrap by default).
Keep in mind that I did not include vendor prefixes for this answer, however I highly recommend that you do this using a tool like Autoprefixer.
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