Force div to 100% of parent div height without spe

2018-12-31 08:52发布

站内问答 / HTML/CSS
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I have a site with the following structure:

<div id="header"></div>

<div id="main">
  <div id="navigation"></div>
  <div id="content"></div>
</div>

<div id="footer"></div>

The navigation is on the left and the content div is on the right. The information for the content div is pulled in through PHP, so it's different every time.

How to scale the navigation vertically so that its height is the same as the content div's height, no matter which page is loaded?

标签： html css scale
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24条回答
与君花间醉酒
2楼-- · 2018-12-31 09:10

Add display: grid to the parent

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流年柔荑漫光年
3楼-- · 2018-12-31 09:11

There is a bit of a contradiction in the question's title and the content. The title speaks of a parent div, but the question makes it sound like you want two sibling divs (navigation and content) to be the same height.

Do you (a) want both navigation and content to be 100% the height of main, or (b) want navigation and content to be be same height?

I'll assume (b)...if that is so, I don't think you will be able to do it given your current page structure (at least, not with pure CSS and no scripting). You would probably need to do something like:

<main div>
    <content div>
         <navigation div></div>
    </div>
</div>

and set the content div to have a left margin of whatever the width of the navigation pane is. That way, the content's content is to the right of the navigation and you can set the navigation div to be 100% of the content's height.

EDIT: I'm doing this completely in my head, but you would probably also need to set the navigation div's left margin to a negative value or set it's absolute left to 0 to shove it back to the far left. Problem is, there are many ways to pull this off but not all of them are going to be compatible with all browsers.

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长期被迫恋爱
4楼-- · 2018-12-31 09:11

You use CSS Flexbox

.flex-container {
  display: flex;
  background-color: DodgerBlue;
}

.flex-container > div {
  background-color: #f1f1f1;
  margin: 10px;
  padding: 20px;
  font-size: 30px;
}
<!DOCTYPE html>
<html>
<head>
</head>
<body>

<div class="flex-container">
  <div>1</div>
  <div>2</div>
  <div>3</div>  
</div>

<p>A Flexible Layout must have a parent element with the <em>display</em> property set to <em>flex</em>.</p>

<p>Direct child elements(s) of the flexible container automatically becomes flexible items.</p>

</body>
</html>

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与风俱净
5楼-- · 2018-12-31 09:12

If you don't mind the navigation div being clipped in the event of an unexpectedly-short content div, there's at least one easy way:

#main {
position: relative;
}

#main #navigation {
position: absolute;
top: 0;
left: 0;
bottom: 0;
width: 10em; /* or whatever */
}

#main #content {
margin: 0;
margin-left: 10em; /* or whatever width you set for #navigation */
}

Elsewise there's the faux-columns technique.

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唯独是你
6楼-- · 2018-12-31 09:17

Based on the method described in this article I have created .Less dynamic solution:

Html:

<div id="container3">
    <div id="container2">
        <div id="container1">
            <div id="col1">Column 1</div>
            <div id="col2">Column 2</div>
            <div id="col3">Column 3</div>
        </div>
    </div>
</div>

Less:

/* Changes these variables to adjust your columns */
@col1Width: 60%;
@col2Width: 1%;
@padding: 0%;

/* Misc variable. Do not change */
@col3Width: 100% - @col1Width - @col2Width;

#container3 {
    float: left;
    width: 100%;
    overflow: hidden;
    background-color: red;
    position: relative;

    #container2 {
        float: left;
        width: 100%;
        position: relative;
        background-color: yellow;
        right: @col3Width;

        #container1 {
            float: left;
            width: 100%;
            position: relative;
            right: @col2Width;
            background-color: green;

            #col1 {
                float: left;
                width: @col1Width - @padding * 2;
                position: relative;
                left: 100% - @col1Width + @padding;
                overflow: hidden;
            }

            .col2 {
                float: left;
                width: @col2Width - @padding * 2;
                position: relative;
                left: 100% - @col1Width + @padding + @padding * 2;
                overflow: hidden;
            }

            #col3 {
                float: left;
                width: @col3Width - @padding * 2;
                position: relative;
                left: 100% - @col1Width + @padding + @padding * 4;
                overflow: hidden;
            }
        }
    }
}
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琉璃瓶的回忆
7楼-- · 2018-12-31 09:17

My solution:

$(window).resize(function() {
   $('#div_to_occupy_the_rest').height(
        $(window).height() - $('#div_to_occupy_the_rest').offset().top
    );
});
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