I can't quite get to the bottom of this: it seems that my parent div is being ignored by the browser when I want to align it. Hopefully any of you guys can get it! Thanks!

This is my parent div: 

```
#button-subheading {
height: auto;
width: auto;
text-align: center;
margin-left: auto;
margin-right: auto;
}

```

and this is my child: 

```
 .button, button {
    color: #fff !important;
    font-size: -63px;
    font-family: "CentraleSans-Bold","Helvetica Neue",Helvetica,Arial;
    line-height: 265%;
    text-decoration: none;
    background-color: #167de4;
    padding: 0 20px;
    position: absolute;
    -webkit-border-radius: 3px;
    -moz-border-radius: 3px;
    -ms-border-radius: 3px;
    -o-border-radius: 3px;
    border-radius: 3px;
    -webkit-background-clip: padding;
    -moz-background-clip: padding;
    border: 1px solid #1d4ea4;
    -moz-box-shadow: 0 1px 1px rgba(0,0,0,0.23),inset 0 1px 0 rgba(255,255,255,0.19);
    background-image: -webkit-gradient(linear, 50% 100%, 50% 0%, color-stop(0%, #3669ef), color-stop(100%, #4f95f4));
    background-image: -webkit-linear-gradient(bottom, #3669ef 0%,#4f95f4 100%);
    background-image: -moz-linear-gradient(bottom, #3669ef 0%,#4f95f4 100%);
    background-image: -o-linear-gradient(bottom, #3669ef 0%,#4f95f4 100%);
    background-image: linear-gradient(bottom, #3669ef 0%,#4f95f4 100%);
    text-shadow: 0 1px 2px rgba(0,0,0,0.75);
    white-space: nowrap;
    text-overflow: ellipsis;
    }

```

when I try to implement it trough this HTML it gets stuck on the left of the screen: 

```
    <div id="button-subheading">
        <div class="button" href="#" style="opacity: 1;">Get started with a free 30-day trial</div>
    </div>

```