Slider widget - Adding min/max labels to the tracks

Hi, we got a requirement for styling the slider/range slider. One of the requirements is to add Min. and Max. as labels of the tracks (0 and 30 in the example).  Is there a way to do this in the widget itself? The documentation is kind of high over. I know css allows me to add content with a :before and :after which might be the solution but if there are other/better solutions id like to know.   Thanks!  
1 answers

You could use this slider
If you set the “number of markers” to one you will have a min and a max.