,可以通过以下步骤实现:
<div id="panel" class="panel">
<!-- 展开面板的内容 -->
</div>
.panel {
background-color: #f2f2f2;
border: 1px solid #ccc;
box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
transition: all 0.3s ease;
}
var panel = document.getElementById("panel");
var toggleButton = document.getElementById("toggle-button");
toggleButton.addEventListener("click", function() {
panel.classList.toggle("expanded");
});
.panel.expanded {
height: 200px;
}
.panel.collapsed {
height: 0;
overflow: hidden;
}
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