.spoiler{background-color:#d4edda;border:2px solid #28a745;border-radius:8px;margin:10px 0;padding:15px;font-size:16px;max-width:100%}.spoiler > summary{color:#155724;font-weight:bold;cursor:pointer;list-style:none;padding:8px 12px;border-radius:4px;background-color:#28a745;display:flex;align-items:center;justify-content:space-between}.spoiler > summary::-webkit-details-marker{display:none}.spoiler > summary:hover{background-color:#218838}.spoiler > div{margin-top:12px;padding:10px;background-color:rgba(255,255,255,0.7);border-radius:4px;line-height:1.6}.spoiler > summary::after{content:"+";font-size:20px;font-weight:bold}.spoiler[open] > summary::after{content:"−"}