How to position a div inside another div that needs to be aligned to the bottom and centered? Has to be responsive, using bootstrap.
Example
<div class="parent">
<div class="sibling">
...
</div>
</div>
.parent{
width: 800px;
height:400px;
background-color:red;
}
.sibling{
width:300px;
height:50px;
background-color: green;
}
Note: I can't use position:absolute;