I have tried in several ways, but the image is not centralizing. Here is the code to better understand the problem:
.logo2 {
color: pink;
position: absolute;
margin: 0 auto !important;
float: none !important;
z-index: 1001;
border-radius: 100%;
text-align: center;
}
<div class = "container">
<div class = "row">
<div class="col-md-12 logo2">
<a href="#">
<img src="https://i.stack.imgur.com/Go65r.png"class="img-responsive"/>
</a>
</div>
</div>
</div>