我正在嘗試使用 flexbox 制作這個下拉按鈕，但它沒有按我的意愿作業。當我使用顯示屬性將滑鼠懸停在按鈕上時，它不顯示。有人可以編輯此代碼以使下拉選單起作用嗎？
uj5u.com熱心網友回復：
這是你想要的嗎
function Enable(){
x = document.getElementById("Ulist");
if(x.className == "display"){
x.className = " active";
}else{
x.className == "display";
}
}li{
list-style: none;
}
.Maincover{
display: flex;
flex-direction: column;
align-items: center;
height: 300px;
}
button{
font-family: montserrat;
font-weight: 500;
width: 100px;
border-radius: 5px;
color: white;
border: 0px;
padding: 5px 10px;
text-align: center;
background-color: tomato;
}
.list{
font-family: rubik;
text-align: center;
margin-top: 10px;
}
.display{
padding:0px;
display: none;
}
.display.active{
display: block;
}
.hoverbutton:hover ~ .display{
display: block;
}<div class="Maincover">
<button class="hoverbutton" onclick="Enable()">Hover Here</button>
<ul class="display" id="Ulist">
<li class="list" id="lists">List item 1</li>
<li class="list" id="lists">List item 2</li>
<li class="list" id="lists">List item 3</li>
</ul>
</div>uj5u.com熱心網友回復：
在這里，我附上了使用 flex 的可懸停下拉選單的 html 和 css 代碼。
.menu-area{
margin: 0;
padding: 0;
box-sizing: border-box;
width:150px;
display:flex;
flex-direction:column;
justify-content:center;
}
.menu-area a{
display: flex;
align-items: center;
justify-content: center;
color: #fff;
background: darkslategrey;
height: 60px;
font-family:Poppins;
font-weight: bold;
text-decoration: none;
}
.menu-area a:hover{
background: tomato;
color: #fff;
}
.menu-area ul{
list-style: none;
display: flex;
}
.menu-area li{
position: relative;
width: 100%;
text-align: center;
}
.menu-area li:hover .dropdown-1 > li{
display: block;
top: 0;
}
.dropdown-1 li{
display: none;
position: relative;
}
.dropdown-1{
position: absolute;
display: flex;
flex-direction: column;
width: 100%;
}
.dropdown-1 li:hover .dropdown-2 li{
display: block;
}
.dropdown-2 li{
display: none;
}
.dropdown-2{
display: flex;
flex-direction: column;
position: absolute;
top: 0;
left: 100%;
width: 100%;
}
.banner-area{
background-image: linear-gradient(rgba(0,0,0,0.5),rgba(0,0,0,0.5)),url(https://i.postimg.cc/Y0YM36yL/aa.jpg);
-webkit-background-size:cover;
background-size:cover;
background-position: center center;
display: flex;
align-items: center;
justify-content: center;
height: calc(100vh - 60px);
}
.banner-area h1 {
text-transform: uppercase;
color: #fff;
font-size: 100px;
font-family: poppins;
letter-spacing: 2px;
} <div class="menu-area">
<ul>
<li><a href="#">Dropdown</a>
<ul class="dropdown-1">
<li><a href="#">service one</a></li>
<li><a href="#">service two</a></li>
<li><a href="#">service three</a>
</li>
</ul>
</li>
</ul>
</div>轉載請註明出處，本文鏈接：https://www.uj5u.com/qiye/416933.html
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