Thx Rajan, but the reference doesn’t help me. The thing is that the if function is totally ignored. And I don’t know why. if i put some code in the “true” section, both will displayed.
if (wp_is_mobile()) {
} else {
<div class="fixedBar">
<div class="boxfloat">
<ul id="tips">
<a href="https://www.szkb.ch" target="_blank"><img class="size-medium wp-image-59" src="https://www.grexx.com/festival/wp-content/uploads/smallszkb_rgb-1-300x90.jpg" alt="SZKB, Siebnen" width="150" height="45" /></a>
</ul>
</div>
</div>
}
