align div in the bottom of another div using css

Answer 1

Click in this link, maybe it can help you

#b {
display: -webkit-inline-flex;
display: -moz-inline-flex;
display: inline-flex;

-webkit-flex-flow: row nowrap;
-moz-flex-flow: row nowrap;
flex-flow: row nowrap;

-webkit-align-items: flex-end;
-moz-align-items: flex-end;
align-items: flex-end;}

http://jsfiddle.net/rudiedirkx/7FGKN/