tyzberd

// Add a slide
$('.your-element').slick('slickAdd',"<div></div>");

<div class="fotorama" data-nav="false" data-fit="cover" data-maxheight="290px">
				<img src="">
				<img src="http://metropolyss.ru/wp-content/uploads/2018/05/101790259.jpg">
				<img src="http://metropolyss.ru/wp-content/uploads/2018/05/5288834.jpg">
			</div>

.toster:after {
    content: "";
    display: block;
    width: 300px;
    height: 20px;
    background: url("data:image/svg+xml;utf8, <svg xmlns='http://www.w3.org/2000/svg' preserveAspectRatio='none' viewBox='0 0 270 20' fill='#565645'><path  d='M0 1c4 1 8 2 11 3 84 21 173 20 256-3v19H0V1z'/></svg>")  no-repeat;
  }