<a href="#spoiler-open-1" id="spoiler-open-1" class="trigger open">Deschide spoiler</a>
<a href="#spoiler-close-1" id="spoiler-close-1" class="trigger close">Inchide spoiler</a>
<div class="spoiler">
     Continut interior spoiler  
</div>

.spoiler {
     display: none;
}

.trigger.close {
     display: none;
}

.trigger.open:target {
     display: none;
}

.trigger.open:target + .trigger.close {
     display: inline;
}

.trigger.open:target + .trigger.close + .spoiler {     
     display: block;
}