sizing a width by VW units while assuring a minimum width

Question

How can I size a DIV with a vw units on the upper size BUT assure a minimum width of at least 100px?

.container {
    min-width:1000px;
    width: 85vw;
}

Is not working...

Answer 1

The original code worked fine:

.container {
    min-width:1000px;
    width: 85vw;
}

Answer 2

maybe you forgot this

 <meta name="viewport" content="width=device-width, initial-scale=1.0">