/* GLOBAL */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@200;400;600&display=swap');
:root {
--nav-hue: #2300d1;
--background-color: #100e1a;
}
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
background-color: var(--background-color);
font-family: 'Poppins', sans-serif;
overflow-x: hidden;
}
h1, h2, h3, h4 {
font-weight: 300;
}
ul {
list-style: none;
}
a {
text-decoration: none;
color: white;
}
/* NAV */
.nav {
height: 60px;
width: 100vw;
background-color: black;
color: white;
border-bottom: 0.15rem solid var(--nav-hue);
}
.nav i {
margin-right: 0.3rem;
}
.logo {
display: inline;
padding: 0.1rem 1.5rem;
}
.nav .left-menu, .nav .right-menu {
display: flex;
align-items: center;
margin-top: 0.4rem;
}
.nav .left-menu {
flex: 2;
margin-left: 1rem;
}
.nav .right-menu {
flex: 1;
margin-left: 10rem;
}
.nav ul li {
padding: 0 0.8rem;
}
.nav-search {
border: 1px solid white;
padding: 0.4rem 0.6rem;
border-radius: 2px;
outline: none;
text-align: center;
}
.nav-search:focus {
transition: letter-spacing 200ms ease-in-out;
letter-spacing: 0.02rem;
border: 1px solid var(--nav-hue);
}
.nav .nav-hover:hover, .nav .nav-hover:hover a, .nav i:hover {
transition: all 100ms ease-in-out;
color: var(--nav-hue);
cursor: pointer;
}
.small-hover:hover {
transition: all 100ms ease-in-out;
transform: scale(1.5) translateY(-0.2rem);
}
/* MAIN */
.container {
max-width: 1100px;
margin: auto;
padding: 0.5rem;
}
/* SHOWCASE */
.showcase {
place-items: center;
margin-top: 1rem;
z-index: 2;
border: none;
}
.showcase-img {
width: 960px;
height: 470px;
border-radius: 2px;
border: 2px solid black;
box-shadow: 3px 3px 15px hsl(250, 100%, 41%);
}
.showcase-img img {
width: 100%;
height: 100%;
}
.showcase-img img:hover {
background-color: dodgerblue; /* testing */
transition: all 0.2s ease-in-out;
opacity: 0.7;
}
.showcase ul {
display: flex;
bottom: 15.6rem;
position: relative;
justify-content: space-between;
width: 85%;
}
.showcase ul li {
color: black;
font-size: 2.5rem;
}
.showcase ul li i:hover {
transition: all 150ms ease-in-out;
font-size: 2.7rem;
color: var(--nav-hue);
cursor: pointer;
}
.showcase ul li i:active {
transition: all 50ms ease-in-out;
transform: translateY(0.2rem);
font-size: 2.9rem;
color: white;
}
/* UTILS */
/* GRID & FLEX */
.flex {
display: flex;
text-align: center;
}
.column {
flex-direction: column;
}
.grid {
display: grid;
grid-template-columns: 1fr;
}
.grid-center {
place-items: center;
}
.nav-hue {
color: var(--nav-hue);
}
.bold {
font-weight: 400;
}<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/css/all.min.css" referrerpolicy="no-referrer" />
<link rel="stylesheet" href="all.css">
<title>GameBuy.com</title>
</head>
<body>
<!-- NAVBAR -->
<div class="nav">
<div class="flex">
<h1 class="logo">Game<span class="nav-hue bold">Buy.com</span></h1>
<ul class="left-menu">
<li><span class="nav-hover"><i class="fas fa-home"></i><a href="#">Home</a></i></span></li>
<li><span class="nav-hover"><i class="fas fa-question"></i><a href="#">About</a></i></span></li>
</ul>
<ul class="right-menu">
<li><input class="nav-search" type="search" placeholder="SEARCH"></li>
<li><i class="fas fa-shopping-cart small-hover"></i></li>
<li><i class="fas fa-search small-hover"></i></li>
</ul>
</div>
</div>
<div class="container">
<!-- SLIDER SHOWCASE -->
<div class="showcase grid">
<div class="showcase-img">
<img id="image" src="images/arma3.png" alt="">
</div>
<ul>
<li class="left-flash"><i id="left-flash" class="fas fa-chevron-left"></i></li>
<li class="right-flash"><i id="right-flash" class="fas fa-chevron-right"></i></li>
</ul>
</div>
</div>
<script src="index.js"></script>
</body>
</html>//当我将鼠标悬停在showcase img容器上时，不透明度会发生变化，但当鼠标悬停在包含2个li图标的ul上时，悬停停止，不透明度重置，这是不应该发生的，我希望鼠标在showcase mg容器中时不透明度保持在0.7，我该如何解决这个问题？谢谢
不是像.showcase-img img:hover img{}这样直接在图像上悬停，而是直接在父div上应用，这意味着.showcase:hover img{}。应该是这样的：
/* GLOBAL */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@200;400;600&display=swap');
:root {
--nav-hue: #2300d1;
--background-color: #100e1a;
}
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
background-color: var(--background-color);
font-family: 'Poppins', sans-serif;
overflow-x: hidden;
}
h1, h2, h3, h4 {
font-weight: 300;
}
ul {
list-style: none;
}
a {
text-decoration: none;
color: white;
}
/* NAV */
.nav {
height: 60px;
width: 100vw;
background-color: black;
color: white;
border-bottom: 0.15rem solid var(--nav-hue);
}
.nav i {
margin-right: 0.3rem;
}
.logo {
display: inline;
padding: 0.1rem 1.5rem;
}
.nav .left-menu, .nav .right-menu {
display: flex;
align-items: center;
margin-top: 0.4rem;
}
.nav .left-menu {
flex: 2;
margin-left: 1rem;
}
.nav .right-menu {
flex: 1;
margin-left: 10rem;
}
.nav ul li {
padding: 0 0.8rem;
}
.nav-search {
border: 1px solid white;
padding: 0.4rem 0.6rem;
border-radius: 2px;
outline: none;
text-align: center;
}
.nav-search:focus {
transition: letter-spacing 200ms ease-in-out;
letter-spacing: 0.02rem;
border: 1px solid var(--nav-hue);
}
.nav .nav-hover:hover, .nav .nav-hover:hover a, .nav i:hover {
transition: all 100ms ease-in-out;
color: var(--nav-hue);
cursor: pointer;
}
.small-hover:hover {
transition: all 100ms ease-in-out;
transform: scale(1.5) translateY(-0.2rem);
}
/* MAIN */
.container {
max-width: 1100px;
margin: auto;
padding: 0.5rem;
}
/* SHOWCASE */
.showcase {
place-items: center;
margin-top: 1rem;
z-index: 2;
border: none;
}
.showcase-img {
width: 960px;
height: 470px;
border-radius: 2px;
border: 2px solid black;
box-shadow: 3px 3px 15px hsl(250, 100%, 41%);
}
.showcase-img img {
width: 100%;
height: 100%;
}
.showcase:hover img {
background-color: dodgerblue; /* testing */
transition: all 0.2s ease-in-out;
opacity: 0.7;
}
.showcase ul {
display: flex;
bottom: 15.6rem;
position: relative;
justify-content: space-between;
width: 85%;
}
.showcase ul li {
color: black;
font-size: 2.5rem;
}
.showcase ul li i:hover {
transition: all 150ms ease-in-out;
font-size: 2.7rem;
color: var(--nav-hue);
cursor: pointer;
}
.showcase ul li i:active {
transition: all 50ms ease-in-out;
transform: translateY(0.2rem);
font-size: 2.9rem;
color: white;
}
/* UTILS */
/* GRID & FLEX */
.flex {
display: flex;
text-align: center;
}
.column {
flex-direction: column;
}
.grid {
display: grid;
grid-template-columns: 1fr;
}
.grid-center {
place-items: center;
}
.nav-hue {
color: var(--nav-hue);
}
.bold {
font-weight: 400;
}<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/css/all.min.css" referrerpolicy="no-referrer" />
<link rel="stylesheet" href="all.css">
<title>GameBuy.com</title>
</head>
<body>
<!-- NAVBAR -->
<div class="nav">
<div class="flex">
<h1 class="logo">Game<span class="nav-hue bold">Buy.com</span></h1>
<ul class="left-menu">
<li><span class="nav-hover"><i class="fas fa-home"></i><a href="#">Home</a></i></span></li>
<li><span class="nav-hover"><i class="fas fa-question"></i><a href="#">About</a></i></span></li>
</ul>
<ul class="right-menu">
<li><input class="nav-search" type="search" placeholder="SEARCH"></li>
<li><i class="fas fa-shopping-cart small-hover"></i></li>
<li><i class="fas fa-search small-hover"></i></li>
</ul>
</div>
</div>
<div class="container">
<!-- SLIDER SHOWCASE -->
<div class="showcase grid">
<div class="showcase-img">
<img id="image" src="images/arma3.png" alt="">
</div>
<ul>
<li class="left-flash"><i id="left-flash" class="fas fa-chevron-left"></i></li>
<li class="right-flash"><i id="right-flash" class="fas fa-chevron-right"></i></li>
</ul>
</div>
</div>
<script src="index.js"></script>
</body>
</html>