<symbol id="part-up-wawe" viewBox="0 0 270 20" preserveAspectRatio="none"><path d="M0 1c4 1 8 2 11 3 84 21 173 20 256-3v19H0V1z"></path></symbol>
.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;
}