Why isn't bottom:0 working even when I use position relative?

November 25, 2021

I’ve got some bars that are currently aligned at the top of my page, but for some reason I can’t seem to get them aligned at the bottom of the page instead.

* {
    margin: 0;
    box-sizing: border-box;
}

.wrapper {
    height: 100vh;
    width: 100vw;
    background-color: rgb(75, 71, 71);
    display: inline-flex;
}

.bar {
    height: 200px;
    width: 2px;
    bottom: 0;
    outline: 2px solid black;
    background-color: white;
}

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Sorting Visulizer</title>
    <link rel="stylesheet" type="text/css" href="css/style.css">
</head>
<body>
    <div class="wrapper">
        <div class="bar"></div>
        <div class="bar"></div>
        <div class="bar"></div>
        <div class="bar"></div>
        <div class="bar"></div>
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        <div class="bar"></div>
    </div>

    <script src="js/random.js"></script>
    <script src="js/index.js"></script>
</body>
</html>

As you can see I have bottom: 0; on the bars, but they are still aligned at the top. I’ve tried adding position: absolute; to the bars and position: relative; to the wrapper, but it doesn’t seem to work. All it does it just put all of the bars on top of each other so it looks like just one bar.

Any help would be greatly appreciated.

>Solution :

You can control the positioning of flex items via align-items and/or justify-content.

For example, adding align-items: flex-end to .wrapper does what I think you’re trying to do:

* {
  margin: 0;
  box-sizing: border-box;
}

.wrapper {
  height: 100vh;
  width: 100vw;
  background-color: rgb(75, 71, 71);
  display: inline-flex;
  align-items: flex-end;
}

.bar {
  height: 200px;
  width: 2px;
  outline: 2px solid black;
  background-color: white;
}

<div class="wrapper">
  <div class="bar"></div>
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</div>