When 1 px border is added to div, Div size increases, Don't want to do that

user_81292 0
Viewed 192482

On click I am adding, 1px border to div, so Div size increases by 2px X 2px. I dont want to get div size increased. Is there any simple way to do so?

Messy Detailed Explanation
Actually I am adding DIVs with float:left (same size, like icons) to a container-div, so all stacks up one after another, and when (container-div width is 300px) no space left width-wise so child DIVs comes in next row, so its like catalog, but because of border only selected DIV size get increased, DIV under selected DIV goes to right and creates empty space below selected DIV.

EDIT:
Decreasing Height/Width on selection, but how to increase it back. Using some 3rd party framework, so don't have event when DIV loses selection..

border css html
18 Answers

We can also use css calc() function

width: calc(100% - 2px);

subtracting 2px for borders

user_60625420

You can try a box-shadow inset

something like this: box-shadow:inset 0px -5px 0px 0px #fff

adds a white 5px border to the bottom of the element without increasing the size

user_114525980

In case content of your div is rendered dynamically and you want to set its height, you can use a simple trick with outline:

button {
    padding: 10px;
    border: 4px solid blue;
    border-radius: 4px;
    outline: 2px solid white;
    outline-offset: -4px;
}

button:hover {
    outline-color: transparent;
}

Example here: https://codepen.io/Happysk/pen/zeQzaZ

user_58799440
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