* {
    box-sizing: border-box;
  }
  
  /* Style the body */
  body {
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
  }
  
  /* Header/logo Title */
  .header {
    padding: 80px;
    text-align: center;
    background: #84a09a;
    color: white;
  }
  
  /* Increase the font size of the heading */
  .header h1 {
    font-size: 40px;
  }
  
  /* Sticky navbar - toggles between relative and fixed, depending on the scroll position. It is positioned relative until a given offset position is met in the viewport - then it "sticks" in place (like position:fixed). The sticky value is not supported in IE or Edge 15 and earlier versions. However, for these versions the navbar will inherit default position */
  .navbar {
    overflow: hidden;
    background-color: #333;
    position: sticky;
    /* position: -webkit-sticky; */
    top: 0;
  }
  
  /* Style the navigation bar links */
  .navbar a {
    /* float: right; */
    display: block;
    color: white;
    text-align: center;
    padding: 2px 2px;
    text-decoration: none;
  }
  
  
  /* Right-aligned link */
  .navbar a.right {
    float: right;
  }
  
  /* Change color on hover */
  .navbar a:hover {
    background-color: rgb(194, 153, 153);
    color: black;
  }
  
  /* Active/current link */
  .navbar a.active {
    background-color: #666;
    color: white;
  }
  
  /* Column container */
  .row {  
    display: -ms-flexbox; /* IE10 */
    display: flex;
    -ms-flex-wrap: wrap; /* IE10 */
    flex-wrap: wrap;
  }
  
  /* Create two unequal columns that sits next to each other */
  /* Sidebar/left column */
  .side {
    -ms-flex: 30%; /* IE10 */
    flex: 30%;
    background-color: #f1f1f1;
    padding: 20px;
  }
  
  /* Main column */
  .main {   
    -ms-flex: 70%; /* IE10 */
    flex: 70%;
    background-color: white;
    padding: 20px;
  }
  
  /* Fake image, just for this example */
  .fakeimg {
    /* background-color: #aaa;
    width: 100%;
    padding: 20px; */
  }
  
  /* Footer */
  .footer {
    padding: 20px;
    text-align: center;
    background: rgb(183, 46, 46);
  }
  
  /* Responsive layout - when the screen is less than 700px wide, make the two columns stack on top of each other instead of next to each other */
  @media screen and (max-width: 700px) {
    .row {   
      flex-direction: column;
    }
  }
  
  /* Responsive layout - when the screen is less than 400px wide, make the navigation links stack on top of each other instead of next to each other */
  @media screen and (max-width: 400px) {
    .navbar a {
      float: none;
      width: 100%;
    }
  }


  /* باز شدن صفحه منو   */

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

.overlay {
  height: 100%;
  width: 0;
  position: fixed;
  z-index: 1;
  top: 0;
  left: 0;
  background-color: rgb(0,0,0);
  background-color: rgba(0,0,0, 0.9);
  overflow-x: hidden;
  transition: 0.5s;
}

.overlay-content {
  position: relative;
  top: 25%;
  width: 100%;
  text-align: center;
  margin-top: 30px;
}

.overlay a {
  padding: 8px;
  text-decoration: none;
  font-size: 36px;
  color: #818181;
  display: block;
  transition: 0.3s;
}

.overlay a:hover, .overlay a:focus {
  color: #f1f1f1;
}

.overlay .closebtn {
  position: absolute;
  top: 20px;
  right: 45px;
  font-size: 60px;
}

@media screen and (max-height: 450px) {
  .overlay a {font-size: 20px}
  .overlay .closebtn {
  font-size: 40px;
  top: 15px;
  right: 35px;
  }
}
/* ........................................... */