Űdvözöljük a központnál

here is some code snippets i'll use in class:
<div class="rainbow-text
<span class="block-line"><span><span style="color:#ff0000">l</span><span style="color:#80ff00">a</span><span style="color:#00ffff">l</span><span style="color:#7f00ff">a</span></span></span>
</div>"