抱歉，我的措辞不太准确，我不确定如何表达。
我有一个标题和一个容器，其中包含侧导航和用于切换它的按钮。我试图倾斜标题，同时通过向相反方向倾斜来保持容器正常。然而，这样做会导致侧导航失去其高度:100%，并且不会粘在左侧。
如何在不影响侧翼的情况下倾斜背景？
这是 fiddle 和代码 https://jsfiddle.net/q0ddzw4v/
HTML
<body id="body">
<header class="header">
<div class="header__container">
<div id="mySidenav" class="sidenav">
<a href="javascript:void(0)" class="closebtn" onclick="closeNav()">×</a>
<a href="#">About</a>
<a href="#">Services</a>
<a href="#">Clients</a>
<a href="#">Contact</a>
</div>
<div id="main">
<h2>Sidenav Push Example</h2>
<p>Click on the element below to open the side navigation menu, and push this content to the right.</p>
<span style="font-size:30px;cursor:pointer" onclick="openNav()">☰ open</span>
</div>
</div>
</header>
<script>
function openNav() {
document.getElementById("mySidenav").style.width = "250px";
}
function closeNav() {
document.getElementById("mySidenav").style.width = "0";
}
</script>
</body>
CSS
body {
font-family: sans-serif;
}
.sidenav {
height: 100%;
width: 0;
position: fixed;
z-index: 1;
top: 0;
left: 0;
background-color: #111;
overflow-x: hidden;
transition: 0.5s;
padding-top: 60px;
}
.sidenav a {
padding: 8px 8px 8px 32px;
text-decoration: none;
font-size: 25px;
color: #818181;
display: block;
}
.sidenav a:hover,
.offcanvas a:focus {
color: #f1f1f1;
}
.sidenav .closebtn {
position: absolute;
top: 0;
right: 25px;
font-size: 36px;
margin-left: 50px;
}
#main {
padding: 16px;
}
.header {
width: 100%;
height: 100vh;
background-color: #C18D8D;
transform: skewY(-10deg);
}
.header__container {
width: 80%;
max-width: 71.25rem;
margin: auto;
display: flex;
flex-direction: column;
height: 100%;
transform: skewY(10deg);
}
最佳答案
不要倾斜 .header 容器，而是添加一个伪元素并倾斜它:
body {
font-family: "Lato", sans-serif;
transition: margin-left 0.5s;
}
.sidenav {
height: 100%;
width: 0;
position: fixed;
z-index: 1;
top: 0;
left: 0;
background-color: #111;
overflow-x: hidden;
transition: 0.5s;
padding-top: 60px;
}
.sidenav a {
padding: 8px 8px 8px 32px;
text-decoration: none;
font-size: 25px;
color: #818181;
display: block;
}
.sidenav a:hover,
.offcanvas a:focus {
color: #f1f1f1;
}
.sidenav .closebtn {
position: absolute;
top: 0;
right: 25px;
font-size: 36px;
margin-left: 50px;
}
#main {
transition: margin-left .5s;
padding: 16px;
}
.header {
position: relative;
width: 100%;
height: 100vh;
}
.header::before {
display: block;
position: absolute;
width: 100%;
height: 100%;
background-color: #C18D8D;
transform: skewY(-10deg);
content: '';
}
.header__container {
position: relative;
z-index: 0;
width: 80%;
max-width: 71.25rem;
margin: auto;
display: flex;
flex-direction: column;
height: 100%;
}<header class="header">
<div class="header__container">
<div id="mySidenav" class="sidenav">
<a href="javascript:void(0)" class="closebtn" onclick="closeNav()">×</a>
<a href="#">About</a>
<a href="#">Services</a>
<a href="#">Clients</a>
<a href="#">Contact</a>
</div>
<div id="main">
<h2>Sidenav Push Example</h2>
<p>Click on the element below to open the side navigation menu, and push this content to the right.</p>
<span style="font-size:30px;cursor:pointer" onclick="openNav()">☰ open</span>
</div>
</div>
</header>
<script>
function openNav() {
document.getElementById("mySidenav").style.width = "250px";
// document.getElementById("body").style.marginLeft = "250px";
}
function closeNav() {
document.getElementById("mySidenav").style.width = "0";
// document.getElementById("body").style.marginLeft = "0";
}
</script>关于css - 在父级上使用倾斜会导致 sidenav 失去位置，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/44433060/