How to make a div fill a remaining horizontal space?

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野的像风
野的像风 2020-11-22 00:45

I have 2 divs: one in the left side and one in the right side of my page. The one in the left side has fixed width and I want the one of the right side to f

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  • 2020-11-22 01:24

    I had a similar problem and I found the solution here: https://stackoverflow.com/a/16909141/3934886

    The solution is for a fixed center div and liquid side columns.

    .center{
        background:#ffffd;
        width: 500px;
        float:left;
    }
    
    .left{
        background:#999;
        width: calc(50% - 250px);
        float:left;
    }
    
    .right{
        background:#999;
        width: calc(50% - 250px);
        float:right;
    }
    

    If you want a fixed left column, just change the formula accordingly.

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  • 2020-11-22 01:25

    Since this is a rather popular question, I'm inclined to share a nice solution using BFC.
    Codepen sample of the following here.

    .left {
      float: left;
      width: 100px;
    }
    .right {
      overflow: auto;
    }
    

    In this case, overflow: auto triggers context behavior and makes the right element expand only to the available remaining width and it will naturally expand to full width if .left disappears. A highly useful and clean trick for many UI layouts, but perhaps hard to understand the "why it works" at first.

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  • 2020-11-22 01:26

    Try adding position relative, remove width and float properties of the right side, then add left and right property with 0 value.

    Also, you can add margin left rule with the value is based on the left element's width (+ some pixels if you need space in between) to maintain its position.

    This example is working for me:

       #search {
            width: 160px;
            height: 25px;
            float: left;
            background-color: #FFF;
        }
    
        #navigation {  
            display: block;  
            position: relative;
            left: 0;
            right: 0;
            margin: 0 0 0 166px;             
            background-color: #A53030;
        }
    
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  • 2020-11-22 01:27

    Use display:flex

    <div style="width:500px; display:flex">
       <div style="width:150px; height:30px; background:red">fixed width</div>
    
       <div style="width:100%; height:30px; background:green">remaining</div>
    </div>
    
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  • 2020-11-22 01:29

    If you don't need compatibility with older versions of certain browsers (IE 10 8 or less for example) you can use the calc() CSS function:

    #left {
       float:left;
       width:180px;
       background-color:#ff0000;
    }
    
    #right {
       float: left;
       width: calc(100% - 180px);
       background-color:#00FF00;
    }
    
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  • 2020-11-22 01:29

    Rules for items and containers;

    Container: {*** display: table; ***}
    Items: {*** display: table-cell; width: 100%; ***}
    

    Use white-space: nowrap; for texts in last items for their undestructuring.

    Item X% | Item Y% | Item Z%

    Total length always = 100%!

    if

    Item X=50%
    Item Y=10%
    Item z=20%
    

    then

    Item X=70%

    Item X is dominant (first items are dominant in table CSS layout)!

    Try max-content; property for div inside for spreading div in container:

    div[class="item"] {
    ...
      width: -webkit-max-content;
      width: -moz-max-content;
      width: max-content;
    ...
    

    }

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