HTML-CSS-References/position.html at main · TheChozenWon/HTML-CSS-References · GitHub

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<!--can set div style to a background color to get an idea of the flexbox or grid or position-->
<!--position fixed = elements placed in browser window, helps keep something on the page even when scrolling-->
<!--position absolute = elements placed on the page. Relative position = an absolute element go into fixed element or a absolute go into a relative element-->
<!--can put position absolute into position fixed element-->
<!--z index helps put which element in front or behind, 0 is default and number goes up-->
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Position practice</title>
</head>
<body style="
  height: 3000px;
  padding-top: 60px;
  padding-left: 80px;
  ">

  <div style="background-color: black;
  color: white;
  position: fixed;
  top: 0px;
  left: 0px;
  right: 0px;
  height: 50px;
  z-index: 1;"
  >header</div>

    <div style="
    background-color: green;
    color: white;
    position: fixed;
    left: 0px;
    bottom: 0px;
    top: 50px;
    width: 72px
    ">
    sidebar
    <div style="
      position: absolute;
      background-color: red;
      color: white;
      top: 0px;
      right: 0px;
      z-index: 2;">
      x
    </div>
    </div>

      <div style="
      position: absolute;
      background-color: red;
      color: white;
      top: 60px;
      right: 10px;
      z-index: 2;">
        absolute
      </div>

      <div style="background-color: lightblue;
        height: 200px;
        width: 200px;
        position: static;"
        >div 1</div>
      <div style="background-color: lightpink;
        height: 200px;
        width: 200px;
        position: relative;
        ">
        div 2
        <div style="
          position: absolute;
          background-color: black;
          color: white;
          z-index: 2;
          bottom: 10px;
          right: 10px">
        5:00
        </div>
      </div>
</body>
</html>