<div class="silver-picture">
    <div class="container">
        <div class="row">
            <div class="col m4 s12 silver-picture-image">
                <img src="http://mypage.local/img/img1.png">
            </div>
            <div class="col m4 s12 silver-picture-image">
                <img src="http://mypage.local/img/img2.png">
            </div>
            <div class="col m4 s12 silver-picture-image">
                <img src="http://mypage.local/img/img3i.png">
            </div>
        </div>
    </div>
</div>