How does jquery work?

Question

css

Hello colleagues.

You need to set the default value for the #preview block, let's say the first item in the drop-down menu (16px). To have this value initially set to the #preview element. How to do it?

Answer 1

codepen.io/anon/pen/dYRyLP

Answer 2

$('#preview').css('font-size','16px');

Answer 3

function fix(e, value) {
  e = $(e);

  e.find("option").each(function(id, e) {
    if (e.value == value) {
      e.selected = true;
      retunr;
    }
  });
}

fix("#chooser", "20px");