html - positioning element to right side

html - positioning element to right side

i am trying to make something like this with css3 but i don't know how to
position search button to be on the right side of 'result' div. not after
the labels

<div id="ResultBox" style="margin-right:10px;margin-top:5px;
height:90%;">
<div class="result" style="display:inline;">
<div style="height:100px; width:150px;">
Name:
<label>Mojtaba Iranpanah</label><br>
Email:
<label>00000000</label><br>
Phone Numner:
<label>00000000</label>
</div>
<div class="btn" style="float:right;">
<button>Search!</button>
</div>
</div>
</div>