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HTML

              
                 <div class="grid-container">
   <div class="menu-icon">
    <i class="fas fa-bars header__menu"></i>
  </div>
   
  <header class="header">
    <div class="header__search">Search...</div>
    <div class="header__avatar">Your face</div>
  </header>

  <aside class="sidenav">
    <div class="sidenav__close-icon">
      <i class="fas fa-times sidenav__brand-close"></i>
    </div>
    <ul class="sidenav__list">
      <li class="sidenav__list-item">Item One</li>
      <li class="sidenav__list-item">Item Two</li>
      <li class="sidenav__list-item">Item Three</li>
      <li class="sidenav__list-item">Item Four</li>
      <li class="sidenav__list-item">Item Five</li>
    </ul>
  </aside>

  <main class="main">
    <div class="main-header">
      <div class="main-header__heading">Hello User</div>
      <div class="main-header__updates">Recent Items</div>
    </div>

    <div class="main-overview">
      <div class="overviewcard">
        <div class="overviewcard__icon">Overview</div>
        <div class="overviewcard__info">Card</div>
      </div>
      <div class="overviewcard">
        <div class="overviewcard__icon">Overview</div>
        <div class="overviewcard__info">Card</div>
      </div>
      <div class="overviewcard">
        <div class="overviewcard__icon">Overview</div>
        <div class="overviewcard__info">Card</div>
      </div>
      <div class="overviewcard">
        <div class="overviewcard__icon">Overview</div>
        <div class="overviewcard__info">Card</div>
      </div>
    </div>

    <div class="main-cards">
      <div class="card">Card</div>
      <div class="card">Card</div>
      <div class="card">Card</div>
    </div>
  </main>

  <footer class="footer">
    <div class="footer__copyright">&copy; 2018 MTH</div>
    <div class="footer__signature">Made with love by pure genius</div>
  </footer>
</div>
              
            
!

CSS

              
                body {
  margin: 0;
  padding: 0;
  color: #fff;
  font-family: 'Open Sans', Helvetica, sans-serif;
  box-sizing: border-box;
}

/* Assign grid instructions to our parent grid container, mobile-first (hide the sidenav) */
.grid-container {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: 50px 1fr 50px;
  grid-template-areas:
    'header'
    'main'
    'footer';
  height: 100vh;
}

.menu-icon {
  position: fixed; /* Needs to stay visible for all mobile scrolling */
  display: flex;
  top: 5px;
  left: 10px;
  align-items: center;
  justify-content: center;
  background-color: #DADAE3;
  border-radius: 50%;
  z-index: 1;
  cursor: pointer;
  padding: 12px;
}

/* Give every child element its grid name */
.header {
  grid-area: header;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  background-color: #648ca6;
}

/* Make room for the menu icon on mobile */
.header__search {
  margin-left: 42px;
}

.sidenav {
  grid-area: sidenav;
  display: flex;
  flex-direction: column;
  height: 100%;
  width: 240px;
  position: fixed;
  overflow-y: auto;
  transform: translateX(-245px);
  transition: all .6s ease-in-out;
  box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.16), 0 0 0 1px rgba(0, 0, 0, 0.08);
  z-index: 2; /* Needs to sit above the hamburger menu icon */
  background-color: #394263;
}

.sidenav.active {
  transform: translateX(0);
}

.sidenav__close-icon {
  position: absolute;
  visibility: visible;
  top: 8px;
  right: 12px;
  cursor: pointer;
  font-size: 20px;
  color: #ddd;
}

.sidenav__list {
  padding: 0;
  margin-top: 85px;
  list-style-type: none;
}

.sidenav__list-item {
  padding: 20px 20px 20px 40px;
  color: #ddd;
}

.sidenav__list-item:hover {
  background-color: rgba(255, 255, 255, 0.2);
  cursor: pointer;
}

.main {
  grid-area: main;
  background-color: #8fd4d9;
}

.main-header {
  display: flex;
  justify-content: space-between;
  margin: 20px;
  padding: 20px;
  height: 150px;
  background-color: #e3e4e6;
  color: slategray;
}

.main-overview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(265px, 1fr));
  grid-auto-rows: 94px;
  grid-gap: 20px;
  margin: 20px;
}

.overviewcard {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px;
  background-color: #d3d3;
}

.main-cards {
  column-count: 1;
  column-gap: 20px;
  margin: 20px;
}

.card {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  background-color: #82bef6;
  margin-bottom: 20px;
  -webkit-column-break-inside: avoid;
  padding: 24px;
  box-sizing: border-box;
}

/* Force varying heights to simulate dynamic content */
.card:first-child {
  height: 485px;
}

.card:nth-child(2) {
  height: 200px;
}

.card:nth-child(3) {
  height: 265px;
}

.footer {
  grid-area: footer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  background-color: #648ca6;
}

/* Non-mobile styles, 750px breakpoint */
@media only screen and (min-width: 46.875em) {
  /* Show the sidenav */
  .grid-container {
    grid-template-columns: 240px 1fr;
    grid-template-areas:
      "sidenav header"
      "sidenav main"
      "sidenav footer";
  }

  .header__search {
    margin-left: 0;
  }

  .sidenav {
    position: relative;
    transform: translateX(0);
  }

  .sidenav__close-icon {
    visibility: hidden;
  }
}

/* Medium screens breakpoint (1050px) */
@media only screen and (min-width: 65.625em) {
  /* Break out main cards into two columns */
  .main-cards {
    column-count: 2;
  }
}
              
            
!

JS

              
                const menuIconEl = $('.menu-icon');
const sidenavEl = $('.sidenav');
const sidenavCloseEl = $('.sidenav__close-icon');

// Add and remove provided class names
function toggleClassName(el, className) {
  if (el.hasClass(className)) {
    el.removeClass(className);
  } else {
    el.addClass(className);
  }
}

// Open the side nav on click
menuIconEl.on('click', function() {
  toggleClassName(sidenavEl, 'active');
});

// Close the side nav on click
sidenavCloseEl.on('click', function() {
  toggleClassName(sidenavEl, 'active');
});
              
            
!
999px

Console