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Equal height flex columns ruined by child element with display: flex

Tags:

html

css

flexbox

CSS:

* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}
body {
  display: flex;
  background-color: #F5F5F5;
}
body > header {
  display: flex;
  position: fixed;
  width: 100%;
  height: 60px;
  align-items: center;
  background-color: #373737;
  -webkit-box-shadow: 0 3px 3px rgba(0, 0, 0, 0.19);
  box-shadow: 0 3px 3px rgba(0, 0, 0, 0.19);
}
aside {
  width: 250px;
  background-color: #484848;
  font-size: 18px "SL";
  margin-top: 60px;
}
aside > ul.side-menu {
  list-style-type: none;
  margin-top: 25px;
  width: 100%;
}
aside > ul > li > a {
  display: block;
  text-decoration: none;
  font-family: "SL";
  font-size: 18px;
  line-height: 40px;
  padding-left: 20px;
  color: #CCCCCC;
  border-bottom: 1px solid #8E8E8E;
  transition: 300ms;
}
aside > ul > li > a.active {
  color: white;
}

HTML:

<body>

  <header>

  </header>

  <aside>
    <ul class="side-menu">
      <li><a href="#" class="active">123</a></li>
      <li><a href="#">123</a></li>
      <li><a href="#">123</a></li>
      <li><a href="#">123</a></li>
    </ul>
  </aside>
</body>

Codepan:

https://codepen.io/UADev/pen/zzmdPG

When you're opening fullscreen, this is what's happening:

enter image description here

Tried to use height: 100% on body and html elements, but it doesn't work correctly when you have another flex element with flex-wrap: wrap inside one of the flex-child elements like aside or section that follows immediately after body. I tried to remove display:flex from one of those elements and it's broke the layout, but problem disappeared.

like image 981
Src Avatar asked Jul 09 '17 01:07

Src


1 Answers

Just add min-height: 100vh to the parent (body) and the default value align-items: stretch will cause the children to to fill the height of the parent.

* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}
body {
  display: flex;
  background-color: #F5F5F5;
  min-height: 100vh;
}
body > header {
  display: flex;
  position: fixed;
  width: 100%;
  height: 60px;
  align-items: center;
  background-color: #373737;
  -webkit-box-shadow: 0 3px 3px rgba(0, 0, 0, 0.19);
  box-shadow: 0 3px 3px rgba(0, 0, 0, 0.19);
}
aside {
  width: 250px;
  background-color: #484848;
  font-size: 18px "SL";
  margin-top: 60px;
}
aside > ul.side-menu {
  list-style-type: none;
  margin-top: 25px;
  width: 100%;
}
aside > ul > li > a {
  display: block;
  text-decoration: none;
  font-family: "SL";
  font-size: 18px;
  line-height: 40px;
  padding-left: 20px;
  color: #CCCCCC;
  border-bottom: 1px solid #8E8E8E;
  transition: 300ms;
}
aside > ul > li > a.active {
  color: white;
}
<body>

  <header>

  </header>

  <aside>
    <ul class="side-menu">
      <li><a href="#" class="active">123</a></li>
      <li><a href="#">123</a></li>
      <li><a href="#">123</a></li>
      <li><a href="#">123</a></li>
    </ul>
  </aside>
</body>
like image 74
Michael Coker Avatar answered Oct 16 '22 07:10

Michael Coker