使P标记忽略父Div

时间:2017-03-06 05:15:11

标签: javascript html css

我的画布外菜单有问题。当菜单打开时,其中的p标签在扩展时似乎会改变它们的左边距。我希望我的p标签完全忽略菜单的打开和关闭并保持文本对齐。以下是我希望它做什么的想法:https://www.w3schools.com/howto/tryit.asp?filename=tryhow_js_sidenav_push

将其与我目前的代码进行比较:

function openNav() {
  document.getElementById("nav").style.width = "250px";
  document.getElementById("burger").style.left = "260px";
}

function closeNav() {
  document.getElementById("nav").style.width = "0";
  document.getElementById("burger").style.left = "10px";
}
* {
  margin: 0;
  madding: 0;
}

html, body {
  height: 100%;
}

body {
  font-family: sans-serif;
}

nav {
  position: absolute;
  top: 0;
  left: 0;
  display: inline-block;
  height: 100%;
  background-color: #333;
  color: #fff;
  padding-top: 30px;
  text-align: center;
  width: 0;
  white-space: nowrap;
  overflow-x: hidden;
  transition: width 1.5s;
}

.close {
  cursor: pointer;
  position: absolute;
  top: 5px;
  right: 15px;
  font-size: 2em;
}

nav p {
  cursor: pointer;
  display: block;
  font-size: 1.7em;
  margin: 30px auto;
  white-space: nowrap;
}

nav p:hover {
  opacity: 0.8;
}

.burger {
  will-change: left;
  position: absolute;
  left: 10px;
  cursor: pointer;
  font-size: 2em;
  z-index: 1;
  transition: 1.5s;
}
<nav id="nav">
  <span class="close" onclick="closeNav()">&times;</span>
  <p>Home</p>
  <p>About</p>
  <p>Blog</p>
  <p>Contact</p>
</nav>

<span class="burger" id="burger" onclick="openNav()">&#9776;</span>

基本上,我希望p标记的行为就像绝对定位一样,但在导航扩展时居中。

2 个答案:

答案 0 :(得分:1)

<p>标记包围在另一个<div>中,无论<nav>是否移动,这些标记都将静态定位。然后将中心对齐应用于它:

function openNav() {
  document.getElementById("nav").style.width = "250px";
  document.getElementById("burger").style.left = "260px";
}

function closeNav() {
  document.getElementById("nav").style.width = "0";
  document.getElementById("burger").style.left = "10px";
}
* {
  margin: 0;
  madding: 0;
}

html, body {
  height: 100%;
}

body {
  font-family: sans-serif;
}

nav {
  position: absolute;
  top: 0;
  left: 0;
  display: inline-block;
  height: 100%;
  background-color: #333;
  color: #fff;
  padding-top: 30px;
  width: 0;
  white-space: nowrap;
  overflow-x: hidden;
  transition: width 1.5s;
}

.close {
  cursor: pointer;
  position: absolute;
  top: 5px;
  right: 15px;
  font-size: 2em;
}

nav p {
  cursor: pointer;
  display: block;
  font-size: 1.7em;
  margin: 30px 0;
  white-space: nowrap;
}

#pHolder{
   margin-left: 75px;
   width: 80px;
   text-align: center;
}
nav p:hover {
  opacity: 0.8;
}

.burger {
  will-change: left;
  position: absolute;
  left: 10px;
  cursor: pointer;
  font-size: 2em;
  z-index: 1;
  transition: 1.5s;
}
<nav id="nav">
  <span class="close" onclick="closeNav()">&times;</span>
  <div id="pHolder">
  <p>Home</p>
  <p>About</p>
  <p>Blog</p>
  <p>Contact</p>
  </div>
</nav>

<span class="burger" id="burger" onclick="openNav()">&#9776;</span>

答案 1 :(得分:-1)

不要更改width,而是保持宽度不变并更改left的{​​{1}}对齐

试试这个

&#13;
&#13;
nav
&#13;
function openNav() {
  document.getElementById("nav").style.left = "0px";
  document.getElementById("burger").style.left = "260px";
}

function closeNav() {
  document.getElementById("nav").style.left = "-250px";
  document.getElementById("burger").style.left = "10px";
}
&#13;
* {
  margin: 0;
  madding: 0;
}

html, body {
  height: 100%;
}

body {
  font-family: sans-serif;
}

nav {
  position: absolute;
  top: 0;
  left: -250px;
  display: inline-block;
  height: 100%;
  background-color: #333;
  color: #fff;
  padding-top: 30px;
  text-align: center;
  width: 250px;
  white-space: nowrap;
  overflow-x: hidden;
  transition: left 1.5s;
}

.close {
  cursor: pointer;
  position: absolute;
  top: 5px;
  right: 15px;
  font-size: 2em;
}

nav p {
  cursor: pointer;
  display: block;
  font-size: 1.7em;
  margin: 30px auto;
  white-space: nowrap;
}

nav p:hover {
  opacity: 0.8;
}

.burger {
  will-change: left;
  position: absolute;
  left: 10px;
  cursor: pointer;
  font-size: 2em;
  z-index: 1;
  transition: 1.5s;
}
&#13;
&#13;
&#13;