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<html><head><style>.dropdown { position: relative; display: inline-block;}.dropdown-content { display: none; position: absolute; background-color: #f9f9f9; min-width: 160px; box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2); padding: 12px 16px; z-index: 1;}.dropdown:hover .dropdown-content { display: block;}</style></head><body><h2>Hoverable Dropdown</h2><p>Move the mouse over the text below to open the dropdown content.</p><div class="dropdown"> <span>Mouse over me</span> <div class="dropdown-content"> <p>Hello World!</p> </div></div></body></html>