SVG for the arrow:
<svg xmlns='http://www.w3.org/2000/svg' viewbox='0 0 10 10' width='10' height='10'><path d='M0.5,10L5,1,9.5,10' fill='#999'></svg>
As a data-URI: data:image/svg+xml;utf8,%3Csvg%20xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg'%20viewbox%3D'0%200%2010%2010'%20width%3D'10'%20height%3D'10'%3E%3Cpath%20d%3D'M0.5%2C10L5%2C1%2C9.5%2C10'%20fill%3D'%23999'%2F%3E%3C%2Fsvg%3EThank you!