bootstrap 4 auto resize svg image

.svg-content { 
	display: inline-block;
	position: absolute;
	top: 0;
	left: 0;
}

<img src="monkey.svg" alt="Monkey face" style="width: 100%; height: auto;">

<svg version="1.1" viewBox="0 0 500 500">
	<circle fill="#F7941E" stroke="#231F20" stroke-width="10" 
	cx="250" cy="250" r="200" opacity="0.6" />
</svg>