Alimjanov-Ibragim

If you haven’t worked with JavaScript in the last few years, these three points should give you enough knowledge to feel comfortable reading the React documentation:

• We define variables with let and const statements. For the purposes of the React documentation, you can consider them equivalent to var.
• We use the class keyword to define JavaScript classes. There are two things worth remembering about them. Firstly, unlike with objects, you don't need to put commas between class method definitions. Secondly, unlike many other languages with classes, in JavaScript the value of this in a method [depends on how it is called](https://developer.mozilla.org/en-US/docs/Web/Jav

Alimjanov-Ibragim

Taken from http://webcoder.kz/fiksirovannaya-shapka-pri-prokrutke-stranicy

HTML разметка:

<header></header>
<div class="content">
<p>
Сюда вставляете очень много контента, для того чтобы появился вертикальный скролл...
</p>
</div>

Alimjanov-Ibragim

/* Customize website's scrollbar like Mac OS
Not supports in Firefox and IE */

/* total width */
body::-webkit-scrollbar {
    background-color:#fff;
    width:16px
}

/* background of the scrollbar except button or resizer */

Alimjanov-Ibragim

.sandwich
	.sandwich__line.sandwich__line--top
	.sandwich__line.sandwich__line--middle
	.sandwich__line.sandwich__line--bottom
	
.sandwich {
  cursor: pointer;
  display: none;
  height: 20px;
  position: relative;