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5.step three Getting a section best, correct, base and you will kept border border offset relative to new viewport using getBoundingClientRect()

5.step three Getting a section best, correct, base and you will kept border border offset relative to new viewport using getBoundingClientRect()

Notice I am measuring from the outside border of the red

element to the inside border of the offsetParent (i.e. ).

As previously mentioned If I was to change the blue

in the above code to have a position of absolute this would alter the value of the offsetParent. In the code below, absolutely positioning the blue

will cause the values returned from offsetLeft and offsetTop to report an offset (i.e. 25px’s). This is because the offset parent is now the blue

and not the .

The image of the browser view shown below clarifies the new measurements returned from offsetLeft and offsetTop when the offsetParent is the blue

.

Notes

Many of the browsers break the outside border to inside border measurement when the offsetParent is the and the or element has a visible margin, padding, or border value.

Using the getBoundingClientRect() method we could have the status regarding an elements exterior edging edges as the painted on the browser viewport in line with the fresh new better and kept edge of the latest viewport. It means the leftover and you will correct edge was measured about external edging edge of a component left edge of the viewport. In addition to top and you may base edges is actually mentioned regarding exterior edging side of a feature to reach the top side of this new viewport.

In the code below I create a 50px X 50px

with a 10px border and 100px margin. To get the distance in pixels from each border edge of the

I call the getBoundingClientRect() method on the

which returns an object containing a top, right, bottom, and left property.

The image below suggests the web browser rendered look at these password which includes added dimension signs showing exactly how getBoudingClientRect() are computed. Read More 5.step three Getting a section best, correct, base and you will kept border border offset relative to new viewport using getBoundingClientRect()