How to color block in bootstrap outside of row?

Question

css

there are divs inside the container. You need to change the background color, the 1st of them, but in such a way that the area of ​​​​painting goes beyond the boundaries of the container, and is up to the border of the window. without using js.

Answer 1

.div {
position: relative;
}
.div:after {
content: '';
position: absolute;
top: 0;
bottom: 0;
right: 100%;
width: some width;
background: some color;
}