Hi,

Try to add the following code snippet to the Custom CSS area in Theme Settings to fix this issue.

div.single-product-page .product-image-summary .product-labels {
	width: 100%;
	max-width:100%;
}

div.single-product-page .product-image-summary .product-labels .onsale {
	position: absolute;
	right: auto;
	left: 0;
	top: 0;
}

div.single-product-page .product-image-summary .product-labels .new {
	position: relative;
} 

Regards