css 如何制作折叠侧边栏？

o3imoua4 于 2023-05-08 发布在其他

关注(0)|答案(2)|浏览(141)

我无法将主要内容移到左侧。下面的代码使主体的内容在我单击打开按钮时向右移动：

function openNav() {
  document.getElementById("mySidebar").style.width = "250px";
  document.getElementById("main").style.marginLeft = "250px";
}

function closeNav() {
  document.getElementById("mySidebar").style.width = "0";
  document.getElementById("main").style.marginLeft = "0";
}

body {
  font-family: "Lato", sans-serif;
}

.sidebar {
  height: 100%;
  width: 0;
  position: fixed;
  z-index: 1;
  top: 0;
  right: 0;
  background-color: #111;
  overflow-x: hidden;
  transition: 0.5s;
  padding-top: 60px;
}

.sidebar a {
  padding: 8px 8px 8px 32px;
  text-decoration: none;
  font-size: 25px;
  color: #818181;
  display: block;
  transition: 0.3s;
}

.sidebar a:hover {
  color: #f1f1f1;
}

.sidebar .closebtn {
  position: absolute;
  top: 0;
  right: 25px;
  font-size: 36px;
  margin-left: 50px;
}

.openbtn {
  font-size: 20px;
  cursor: pointer;
  background-color: #111;
  color: white;
  padding: 10px 15px;
  border: none;
  margin-left: 1600px;
}

.openbtn:hover {
  background-color: #444;
}

#main {
  transition: margin-left .5s;
  padding: 16px;
}

/* On smaller screens, where height is less than 450px, change the style of the sidenav (less padding and a smaller font size) */

@media screen and (max-height: 450px) {
  .sidebar {
    padding-top: 15px;
  }
  .sidebar a {
    font-size: 18px;
  }
}

<!DOCTYPE html>
<html>

<head>
  <meta name="viewport" content="width=device-width, initial-scale=1">

</head>

<body>

  <div id="mySidebar" class="sidebar">
    <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">
    <button class="openbtn" onclick="openNav()">☰ Open Sidebar</button>
    <h2>Collapsed Sidebar</h2>
    <p>Click on the hamburger menu/bar icon to open the sidebar, and push this content to the right.</p>
  </div>

</body>

</html>

如你所见，如果我尝试改变.style.marginRight=“250 px”;它会添加边距，但不会将内容向左移动。我希望能够将内容移到左边。

css

来源：https://stackoverflow.com/questions/76152387/how-to-make-a-collapsed-sidebar

2条答案

按热度按时间

pod7payv1#

考虑使用transform: translateX()。它的性能也更高，因为浏览器不必像margin那样在每个动画帧（每秒60帧，以1/16秒为单位）执行布局计算。

function openNav() {
  document.getElementById("mySidebar").style.width = "250px";
  document.getElementById("main").style.transform = "translateX(-250px)";
}

function closeNav() {
  document.getElementById("mySidebar").style.width = "0";
  document.getElementById("main").style.transform = "";
}

body {
  font-family: "Lato", sans-serif;
}

.sidebar {
  height: 100%;
  width: 0;
  position: fixed;
  z-index: 1;
  top: 0;
  right: 0;
  background-color: #111;
  overflow-x: hidden;
  transition: 0.5s;
  padding-top: 60px;
}

.sidebar a {
  padding: 8px 8px 8px 32px;
  text-decoration: none;
  font-size: 25px;
  color: #818181;
  display: block;
  transition: 0.3s;
}

.sidebar a:hover {
  color: #f1f1f1;
}

.sidebar .closebtn {
  position: absolute;
  top: 0;
  right: 25px;
  font-size: 36px;
  margin-left: 50px;
}

.openbtn {
  font-size: 20px;
  cursor: pointer;
  background-color: #111;
  color: white;
  padding: 10px 15px;
  border: none;
  margin-left: 1600px;
}

.openbtn:hover {
  background-color: #444;
}

#main {
  transition: transform .5s;
  padding: 16px;
}

/* On smaller screens, where height is less than 450px, change the style of the sidenav (less padding and a smaller font size) */

@media screen and (max-height: 450px) {
  .sidebar {
    padding-top: 15px;
  }
  .sidebar a {
    font-size: 18px;
  }
}

<!DOCTYPE html>
<html>

<head>
  <meta name="viewport" content="width=device-width, initial-scale=1">

</head>

<body>

  <div id="mySidebar" class="sidebar">
    <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">
    <button class="openbtn" onclick="openNav()">☰ Open Sidebar</button>
    <h2>Collapsed Sidebar</h2>
    <p>Click on the hamburger menu/bar icon to open the sidebar, and push this content to the right.</p>
  </div>

</body>

</html>

赞(0）回复(0）举报 2023-05-08

0md85ypi2#

我不确定我是否完全理解你的问题。但我觉得你是故意的

function openNav() {
  document.getElementById("mySidebar").style.width = "250px";
  document.getElementById("main").style.marginLeft = "250px";
}

function closeNav() {
  document.getElementById("mySidebar").style.width = "0";
  document.getElementById("main").style.marginLeft = "0";
}

body {
  font-family: "Lato", sans-serif;
}

.sidebar {
  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;
}

.sidebar a {
  padding: 8px 8px 8px 32px;
  text-decoration: none;
  font-size: 25px;
  color: #818181;
  display: block;
  transition: 0.3s;
}

.sidebar a:hover {
  color: #f1f1f1;
}

.sidebar .closebtn {
  position: absolute;
  top: 0;
  right: 25px;
  font-size: 36px;
  margin-left: 50px;
}

.openbtn {
  font-size: 20px;
  cursor: pointer;
  background-color: #111;
  color: white;
  padding: 10px 15px;
  border: none;
}

.openbtn:hover {
  background-color: #444;
}

#main {
  transition: margin-left .5s;
  padding: 16px;
}

/* On smaller screens, where height is less than 450px, change the style of the sidenav (less padding and a smaller font size) */

@media screen and (max-height: 450px) {
  .sidebar {
    padding-top: 15px;
  }
  .sidebar a {
    font-size: 18px;
  }
}

<!DOCTYPE html>
<html>

<head>
  <meta name="viewport" content="width=device-width, initial-scale=1">

</head>

<body>

  <div id="mySidebar" class="sidebar">
    <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">
    <button class="openbtn" onclick="openNav()">☰ Open Sidebar</button>
    <h2>Collapsed Sidebar</h2>
    <p>Click on the hamburger menu/bar icon to open the sidebar, and push this content to the right.</p>
  </div>

</body>

</html>

赞(0）回复(0）举报 2023-05-08

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css 如何制作折叠侧边栏？

2条答案

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