Using vw units is helpful when scaling websites, but can sometimes present design challenges. font-size:clamp() allows you use a range of font-sizes using other units in conjunction with vw units so you wouldn’t have to adjust font-sizes all the way down (though you still could).
Standard font clamp syntax:
font-size:clamp(min, preferred, max)
font-size:clamp(14px, 2vw, 20px)