我一直在尝试在练习网页上添加深色模式,它可以更改主体背景颜色,但不适用于按钮,代码为:
该代码在.icons CSS类上不起作用,它在chrome中显示,但不起作用,
高度赞赏。
谢谢
document.querySelector(".slider-button").addEventListener("input", function(){
document.querySelector("#data-left").innerHTML = this.value;
})
document.querySelector(".slider-button").addEventListener("input", function(){
document.querySelector(".gb-left").innerHTML = 1000-this.value;
})
document.querySelector(".button-color-mode").addEventListener("click", function(){
document.body.classList.toggle("darkmode");
document.querySelector(".icons").classList.toggle("darkmode");
})
body {
position: fixed;
background-color: hsl(229, 57%, 11%);
background-image: url("images/bg-desktop.png");
background-position: center 400px;
background-repeat: no-repeat;
background-size: cover;
}
.button-color-mode{
background-color: black;
color: white;
outline: none;
border-radius: 15px;
}
.darkmode{
background-color: white;
}
.icons {
background-color: hsl(229, 57%, 11%);
border-style: none;
border-radius: 10px;
width: 50px;
height: 50px;
padding: 10px;
margin: 5px;
outline: none;
}
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<link href="https://fonts.googleapis.com/css2?family=Raleway:wght@400;700&display=swap" rel="stylesheet">
<link rel="icon" href="images/favicon-32x32.png">
<link rel="stylesheet" href="styles.css">
<title>Fylo Data Storage</title>
</head>
<body>
<button class="icons" type="button"><img src="images/icon-document.svg" alt="" name="button"></button>
<button class="icons" type="button"><img src="images/icon-folder.svg" alt="" name="button"></button>
<button class="icons" type="button"><img src="images/icon-upload.svg" alt="" name="button"></button>
</html>
答案 0 :(得分:2)
在CSS中,定义选择器的顺序很重要。如果在多个具有相同特异性的选择器中定义了一条规则(例如background-color
),则最后定义的选择器将覆盖之前的所有定义。
在这种情况下,.icons { background-color: ... }
是在之后 .darkmode { background-color: ... }
定义的,因此,即使同时设置了.icons
类,darkmode
也会获胜。
换句话说:将.darkmode
块移到.icons
块下面。
答案 1 :(得分:1)
你不需要 jQuery 来实现这个基本功能。
此方法使用按钮在亮(默认)和暗模式之间手动切换。
class Food(): # create a food class
def __init__(self, type_):
self.type = type_
self.value = 0
def increment(self):
self.value += 1
def __lt__(self, other):
return self.value < other.value
def __le__(self, other):
return self.value <= other.value
def __gt__(self, other):
return self.value > other.value
def __ge__(self, other):
return self.value >= other.value
def __eq__(self, other):
return self.type == other.type
foods = [Food("pizza"), Food("burger"), Food("hot dog")] # make some foods
food_STRING = []
for i in foods:
food_STRING.append(i.type)
for i in range(10):
food = input("Food:")
foods[food_STRING.index(food)].increment()
sorted_food = sorted(foods)
print(sorted_food[-1].type, sorted_food[-2].type)
<html lang="en">
<head>
<title>Dark Mode</title>
</head>
<body>
<h1>Dark mode demo</h1>
<button onclick="switch_mode()">Dark</button>
<p>
Lorem, ipsum dolor sit amet consectetur adipisicing elit. Placeat odio repellendus neque illum explicabo architecto minima eligendi expedita
</p>
</body>
</html>
以下 js 脚本将暗模式类切换到 body 元素。
<style>
html {font-size: 100%;}
body {
font-weight: 400;
line-height: 1.75;
color: #3f0d7d;
}
.dark-mode {
background: #3e3939;
color: white;
}
</style>
已经详细讨论过here