Why such cheap video cards?

Question

css

Gentlemen, I stumbled upon this Klondike, and went crazy when I saw the assortment and prices ( https://rutcom.ru/catalog/videokarty/videokarta_AS... ), the store is called RUTkomplekt.
Can you give your comments? This is what in general?

Answer 1

It is enough to understand how they work @mediaand be able to transform the display of elements. There is nothing difficult here.
jsfiddle.net/profesor08/jan8L05t

<nav>
  <button>==</button>
  <ul>
    <li><a href="#">menu item 1</a></li>
    <li><a href="#">menu item 2</a></li>
    <li><a href="#">menu item 3</a></li>
    <li><a href="#">menu item 4</a></li>
  </ul>
</nav>

nav {
  display: flex;
  background: #f5f5f5;
  border-bottom: 1px solid #e2e2e2;
  
  button {
    padding: 10px;
    border: 0;
  }
  
  ul {
    list-style: none;
    margin-left: auto;
    display: flex;

    li a {
      padding: 10px;
      display: inline-block;

      &:hover {
        background: #e2e2e2;
      }
    }
  }
}

@media screen and (min-width: 768px) {
  nav {
    button {
      display: none;
    }
  }
}

@media screen and (max-width: 767.98px) {
  nav {
    position: relative;
    
    button:not(:hover) {
      ~ ul {
        display: none;
      }
    }
    
    ul {
      position: absolute;
      top: 100%;
      left: 0;
      flex-direction: column;
      background: #f5f5f5;
      border: 1px solid #e2e2e2;
    }
  }
  
}

Answer 2

1. NEVER buy anything from stores that do not have normal contacts. And ideally, the real address of a store with a street, a house where you can come and buy live.
2. Pay attention to contacts - if there is not even a phone number, but only a call back, this should alert the potential victim
3. Never pay anything in advance, check the package more carefully than potatoes in the market. And it’s better not to get involved, because it’s quite difficult to psychologically check something, for example, a video card, while the courier is waiting.