css media query adding class to HTML

Question

I have this HTML:

<li><a href=""><i class="fa fa-iconname" style="vertical-align: middle;"></i>Link Name</a></li>

I am then using this media query in my CSS:

@media (max-width: 1000px) {
    ...
}

how can i change my tag to:

<i class="fa fa-iconname lg-2x" style="vertical-align: middle;"></i>

when the media query takes effect?

Answer 1

You can use pure css to achieve this by just replicating the list-item and toggle with media query like this:

HTML:

<li class="bigScreen"><a href=""><i class="fa fa-iconname"></i>Link Name</a></li>

<li class="smallScreen"><a href=""><i class="fa fa-iconname lg-2x"></i>Link Name</a></li>

CSS:

@media (max-width: 1000px) {
  .bigScreen {
    display:none;
  }
  .smallScreen {
    display:block;
  }
}

@media (min-width: 1001px) {
  .bigScreen {
    display:block;
  }
  .smallScreen {
    display:none;
  }
}

Answer 2

You can not do that with css, but you can with JavaScript or jQuery.

fa-2x is essentialy: font-size: 2em; . So, you can do this:

@media (max-width: 1000px) {
    .fa-iconname {
    font-size: 2em;
    }
}