Does CSS Box-Shadow property affect page performance and rendering of elements?

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I know the box-shadow property is relatively old, and widely used. But when I use it in excess, I say by applying box-shadow to 100 elements on the same page I've lost performance?

I made this first print with more than 400 divs, and noticed the time of rendering It exceeded the limit of the red line ... Just as load was slower, probably for having more "raw" code in the document

Nowwithabout50div,seeintheredmarkingsthattherenderismoresubtle,northeredlineappears.Notetheredarrowsinthisimageandcomparewiththeotheroneabove ApparentlytheFPSinbothcaseswereat100%(60fps)

IrealizethatwhenIhavean"abusive" use of this property, and even when I have animations where the elements have box-shadow the machine gives a performance "crash", especially in mobile ...

  • Does this issue of % cos hardware performance really proceed really affect the page's animations and scrolling?
  • An alternative would be to use the box-shadow property?
  • Can this fact damage the user experience with Accessibility and SEO result with a page that renders more slowly?

Reference article I found:

p>

Code I used in testing 

div {
    width: 50px;
    height: 50px;
    background-color: #999;
    border-radius: 10px;
    box-shadow: 5px 5px 5px rgba(0, 0, 0, 0.5);
    display: inline-block;
    margin: 10px;
}
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asked by anonymous 26.10.2018 / 16:58

0 answers

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