.img-right {
	float: right;
	margin-left: 8px;
	margin-bottom: 8px;
}
.img-left {
	float: left;
	margin-bottom: 15px;
	margin-right: 8px;
}
<p>
    <a href="http://jigsaw.w3.org/css-validator/">
        <img style="border:0;width:88px;height:31px"
            src="http://jigsaw.w3.org/css-validator/images/vcss"
            alt="Valid CSS!" />
    </a>
</p>