所以我需要让一个平面图标像这样浮动。我只需要用 CSS 动画来制作它，不需要 JS。我不知道如何让它向上和向下飞行。我附上了一些我写的代码。
\n\nhtml
\n\n.button-block {\r\n display: flex;\r\n justify-content: center;\r\n}\r\n.block-button-1 {\r\n text-align: center;\r\n border-radius: 35px;\r\n color: white;\r\n font-size: 21px;\r\n border: none;\r\n height: 75px;\r\n width: 330px;\r\n background-color: #4b9cdb;\r\n border-color: #bbdcff;\r\n box-shadow: 0px 0 15px #bbdcff;\r\n}\r\n\r\n.button-image {\r\n position: fixed;\r\n height: 30px;\r\n width: 30px;\r\n margin: 24px 0 0 -130px;\r\n animation: 2s ease infinite;\r\n}<div class="button-block">\r\n <img class="button-image" src="images/plane.png">\r\n <button class="block-button-1">\xd0\x97\xd0\xb0\xd0\xb1\xd1\x80\xd0\xbe\xd0\xbd\xd0\xb8\xd1\x80\xd0\xbe\xd0\xb2\xd0\xb0\xd1\x82\xd1\x8c \xd0\xbf\xd0\xbe\xd0\xbb\xd1\x91\xd1\x82</button>\r\n </div>