I don't know. I don't know. The active attribute of the link in iOS development and web pages is invalid. But today, I found that a hack method can make the CSS active effective.

It's amazing. It's also accidental.

We always think that it is normal that active on mobile devices is invalid, because there is no mousedown, is it touch?

Today, we found that to make the CSS active pseudo-class of the link take effect, you only need to bind an empty anonymous method to touchstart/touchend of any event of the touch series of the a link to hack success.

<Style>

A {

Color: #000;

}

A: active {

Color: # FFF;

}

</Style>

<A herf = "asdasd"> asdasd </a>

<SCRIPT>

VaR A = Document. getelementsbytagname ('A ');

For (VAR I = 0; I <A. length; I ++ ){

A [I]. addeventlistener ('touchstart', function () {}, false );

}

</SCRIPT>

Try an iPad or iPhone,

Amazing discovery: After the touch press down, it turns out that the active effect of A has taken effect ...!!!