将JavaScript侧面导航菜单更改为从右到左进行动画处理

Question

I'm following this tutorial on how to create an animated navigation side menu . This is the website: https://www.w3schools.com/howto/tryit.asp?filename=tryhow_js_sidenav

...Its positioned on the left side of the screen and It currently slides in from the left, I positioned the entire menu over to the right side of the screen using CSS and now I want to make the menu slide in from the right.

This is the hypertext:

<div id="mySidenav" class="sidenav">
        <a href="javascript:void(0)" class="closebtn" onclick="closeNav()">&times;</a>
        <a href="#">About</a>
        <a href="#">Services</a>
        <a href="#">Clients</a>
        <a href="#">Gallery</a>
        <a href="#">Contact</a>
    </div>

...and this is the JavaScript:

<script>
        function openNav() {
            document.getElementById("mySidenav").style.width = "250px";
        }

        function closeNav() {
            document.getElementById("mySidenav").style.width = "0";
        }
    </script>

...The CSS provided by the tutorial only seems to style the look and positioning of the Navigation bar. Could I get some help on how to make the navigation slide in from the right as oppose to the left?

Answer 1

In .sidenav { change left:0; to right:0;

Answer 2

Making a Sliding Side Navigation Menu for Responsive Designs Reference URL https://code.tutsplus.com/tutorials/making-a-sliding-side-navigation-menu-for-responsive-designs--cms-28400

<div id="sideNavigation" class="sidenav">
  <a href="javascript:void(0)" class="closebtn" onclick="closeNav()">&times;</a>
  <a href="#">About</a>
  <a href="#">Features</a>
  <a href="#">Contact Us</a>
</div>

<nav class="topnav">
  <a href="#" onclick="openNav()">
    <svg width="30" height="30" id="icoOpen">
        <path d="M0,5 30,5" stroke="#000" stroke-width="5"/>
        <path d="M0,14 30,14" stroke="#000" stroke-width="5"/>
        <path d="M0,23 30,23" stroke="#000" stroke-width="5"/>
    </svg>
  </a>
</nav>

<div id="main">
<!-- Add all your websites page content here  -->
</div>

<script>
function openNav() {
    document.getElementById("sideNavigation").style.width = "250px";
    document.getElementById("main").style.marginLeft = "250px";
}

function closeNav() {
    document.getElementById("sideNavigation").style.width = "0";
    document.getElementById("main").style.marginLeft = "0";
}
</script>


    /* The side navigation menu */
<style>
.sidenav {
    height: 100%; /* 100% Full-height */
    width: 0; /* 0 width - change this with JavaScript */
    position: fixed; /* Stay in place */
    z-index: 1; /* Stay on top */
    top: 0;
    left: 0;
    background-color: #111; /* Black*/
    overflow-x: hidden; /* Disable horizontal scroll */
    padding-top: 60px; /* Place content 60px from the top */
    transition: 0.5s; /* 0.5 second transition effect to slide in the sidenav */
}

/* The navigation menu links */
.sidenav a {
    padding: 8px 8px 8px 32px;
    text-decoration: none;
    font-size: 25px;
    color: #818181;
    display: block;
    transition: 0.3s
}

/* When you mouse over the navigation links, change their color */
.sidenav a:hover, .offcanvas a:focus{
    color: #f1f1f1;
}

/* Position and style the close button (top right corner) */
.sidenav .closebtn {
    position: absolute;
    top: 0;
    right: 25px;
    font-size: 36px;
    margin-left: 50px;
}

/* Style page content - use this if you want to push the page content to the right when you open the side navigation */
#main {
    transition: margin-left .5s;
    padding: 20px;
    overflow:hidden;
    width:100%;
}
body {
  overflow-x: hidden;
}

/* Add a black background color to the top navigation */
.topnav {
    background-color: #333;
    overflow: hidden;
}

/* Style the links inside the navigation bar */
.topnav a {
    float: left;
    display: block;
    color: #f2f2f2;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
    font-size: 17px;
}

/* Change the color of links on hover */
.topnav a:hover {
    background-color: #ddd;
    color: black;
}

/* Add a color to the active/current link */
.topnav a.active {
    background-color: #4CAF50;
    color: white;
}

/* 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) {
    .sidenav {padding-top: 15px;}
    .sidenav a {font-size: 18px;}
}

a svg{
  transition:all .5s ease;

  &:hover{
    #transform:rotate(180deg);
  }
}

#ico{
  display: none;
}

.menu{
  background: #000;
  display: none;
  padding: 5px;
  width: 320px;
  @include border-radius(5px);

  #transition: all 0.5s ease;

  a{
    display: block;
    color: #fff;
    text-align: center;
    padding: 10px 2px;
    margin: 3px 0;
    text-decoration: none;
    background: #444;

    &:nth-child(1){
      margin-top: 0;
      @include border-radius(3px 3px 0 0 );
    }
    &:nth-child(5){
      margin-bottom: 0;
      @include border-radius(0 0 3px 3px);
    }

    &:hover{
      background: #555;
    }
  }
}
</style>