block A tag

http://stackoverflow.com/questions/19637640/onmouseover-affects-cancel-on-line-breaks-in-span-tag/19637797#19637797

by TastyBytes

HTML

<span>
    
    <a href="#" onmouseover="this.style.backgroundColor='red'" onmouseout="this.style.backgroundColor='white'">this is a placeholder link to show the way that the span onmouseover acts when a <br/><br/>link enters a second/third line, essentially causing white-space within span</a>
    <img src="noimage.jp" width="25" height="25" style="background: #0a0"/>
</span>

CSS

span a {
    display: inline-block;
}

span img {
    vertical-align: top;
}