.back_to_top_btn{
  display: none; /* Hidden by default */
  position: fixed; /* Fixed/sticky position */
  width: 60px; /* Set the width to the same as the image */
  height: 60px; /* Set the height to the same as the image */
  bottom: 10px; /* Place the button at the bottom of the page */
  right: 10px; /* Place the button 10px from the right */
  z-index: 50; /* Make sure it does not overlap */
  border: none; /* Remove borders */
  outline: none; /* Remove outline */
  transition-duration: 0.3s;/* Slow the duration between black and red on hover */
  background-color: transparent;/* Background colour transparent as images are png */
  background-size: cover;/* Images same aspect ratio and size close to nutton size */
  background-image: url(/Images/to_top.png);/* Folder up a level so first backslash used */
  background-repeat: no-repeat;/* No repeat on images */
}
.back_to_top_btn:hover {
  background-image: url(/Images/to_top_hover.png);
  cursor: pointer;
}
.menu_button{
  display: block;
  position: fixed;
  width: 60px;
  height: 60px;
  top: 10px;
  left: 10px;
  z-index: 51;
  border: none;
  outline: none; 
  transition-duration: 0.3s;
  background-color: transparent;
  background-size: cover;
  background-image: url(/Images/menu_button.png);
  background-repeat: no-repeat;
}
.menu_button:hover {
  background-image: url(/Images/menu_button_hover.png);
  cursor: pointer;
}
.menuBlock{
  position: fixed;
  top: 100px;
  width: 100%;
  z-index: 52;
}
.menu{
  display: none;
  position: absolute;
  left: 20px;
  border-radius: 20px;
  background-color: #fff;
  opacity: 0.8;
}
.menuCloseButton{
  position: absolute;
  top: 10px;
  right: 10px;
  width: 30px;
  height: 30px;
  border: none;
  outline: none;
  transition-duration: 0.3s;
  background-image: url(/Images/menu_close.png);
  background-color: transparent;
  background-size: cover;
  background-repeat: no-repeat;
}
.menuCloseButton:hover{
  background-image: url(/Images/menu_close_hover.png);
  cursor: pointer;
}
.menuItems{
  padding-left: 40px;
  padding-right: 40px;
  padding-top: 40px;
}
.menuItems a{
  display: block;
  font-size: 24px;
  margin-top: 30px;
  margin-bottom: 30px;
  color: #4d4d4d;
  text-decoration: none;
  transition-duration: 0.3s;
}
.menuItems a:hover{
  color: red;
}
.menuItems a.active{
  color: green;
}


@media (max-width: 1200px){
  .menu_button{
    display: block;
  }
  .middle_menu_button{
    display: none;
  }
}
@media (max-width: 600px){
  .menuItems{
    padding-left: 30px;
    padding-right: 30px;
    padding-top: 30px;
  }
  .menuItems a{
    display: block;
    font-size: 18px;
    margin-top: 30px;
    margin-bottom: 30px;
    color: #4d4d4d;
    text-decoration: none;
    transition-duration: 0.3s;
  }
  .back_to_top_btn{
    width: 40px;
    height: 40px;
  }
  .menu_button{
    width: 40px;
    height: 40px;
  }
}
@media (max-width: 400px){
  .menuItems{
    padding-left: 20px;
    padding-right: 20px;
    padding-top: 20px;
  }
  .menuItems a{
    display: block;
    font-size: 16px;
    margin-top: 30px;
    margin-bottom: 30px;
    color: #4d4d4d;
    text-decoration: none;
    transition-duration: 0.3s;
  }
  .menuCloseButton{
    width: 20px;
    height: 20px;
  }
}