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csscss-transforms

what controls a CSS transform's horizontal movement?

I found a pure CSS mobile burger menu solution on codepen, and I altered the code with

transform: translate(-200%, 0);

/* Mobile Menu */
#menuToggle {
    display: block;
    position: relative;
    top: 10px;
    left: 50%;
    z-index: 1;
    -webkit-user-select: none;
    user-select: none;
}
#menuToggle a {
    text-decoration: none;
    color: #232323;
    transition: color 0.3s ease;
}
#menuToggle a:hover {color: tomato;}
#menuToggle input {
    display: block;
    width: 40px;
    height: 32px;
    position: absolute;
    top: -7px;
    left: -5px;
    cursor: pointer;
    opacity: 0; /* hide this */
    z-index: 2; /* and place it over the hamburger */
    -webkit-touch-callout: none;
}
#menuToggle span {
    display: block;
    width: 33px;
    height: 4px;
    margin-bottom: 5px;
    position: relative;
    background: #cdcdcd;
    border-radius: 3px;
    z-index: 1;
    transform-origin: 4px 0px;
    transition: transform 0.5s cubic-bezier(0.77, 0.2, 0.05, 1.0), background 0.5s cubic-bezier(0.77, 0.2, 0.05, 1.0), opacity 0.55s ease;
}
#menuToggle span:first-child {transform-origin: 0% 0%;}
#menuToggle span:nth-last-child(2) {transform-origin: 0% 100%;}
#menuToggle input:checked ~ span {
    opacity: 1;
    transform: rotate(45deg) translate(-2px, -1px);
    background: #232323;
}
#menuToggle input:checked ~ span:nth-last-child(3) {
    opacity: 0;
    transform: rotate(0deg) scale(0.2, 0.2);
}
#menuToggle input:checked ~ span:nth-last-child(2) {
    transform: rotate(-45deg) translate(0, -1px);
}
#mobile-menu {
    position: absolute;
    width: 300px;
    margin: -100px 0 0 -50px;
    padding: 50px;
    padding-top: 125px;
    background: #ededed;
    list-style-type: none;
    -webkit-font-smoothing: antialiased;
    transform-origin: 0% 0%;
    transform: translate(-200%, 0);
    transition: transform 0.5s cubic-bezier(0.77, 0.2, 0.05, 1.0);
}
#mobile-menu li {
    padding: 10px 0;
    font-size: 22px;
}
#menuToggle input:checked ~ ul {transform: none;}
/* End Mobile Menu */
    <!--      Mobile Menu          -->
    <!--    Made by Erik Terwan    --> 
    <!--   24th of November 2015   --> 
    <!--        MIT License        -->
    <nav role="navigation" id="nav-mobile-menu">
      <div id="menuToggle">
        <input type="checkbox" />
        <span></span> <span></span> <span></span>
        <ul id="mobile-menu">
          <li><a href="#home">Home</a></li>
          <li><a href="#about">About</a></li>
          <li><a href="#history">History</a></li>
          <li><a href="#campaigns">Campaigns</a></li>
          <li><a href="#contact">Contact</a></li>
        </ul>
      </div>
    </nav>
    <!--      End Mobile Menu          -->

On the live site, I see the following when clicking on the burger icon:

enter image description here

What is going wrong with the transform: translate(-200%, 0); transform?

Help appreciated.

Solution

  • your toggle-menu is hide, first of all you need to display it and thien try this:

    #menuToggle {
    display: block;
    position: absolute;
    top: 50px;
    left: 50px;
    z-index: 1;
    -webkit-user-select: none;
    user-select: none;
}

#mobile-menu {
    position: absolute;
    width: 300px;
    margin: -100px 0 0 -100px;
    padding: 50px;
        padding-top: 50px;
    padding-top: 125px;
    background: #ededed;
    list-style-type: none;
    -webkit-font-smoothing: antialiased;
    transform-origin: 0% 0%;
    transform: translate(-200%, 0);
    transition: transform 0.5s cubic-bezier(0.77, 0.2, 0.05, 1.0);
}