Div width 100% minus fixed amount of pixels

Question

How can I achieve the following structure without using tables or JavaScript? The white borders represent edges of divs and aren\'t relevant to the question.

Answer 1

You can make use of Flexbox layout. You need to set flex: 1 on the element that needs to have dynamic width or height for flex-direction: row and column respectively.

Dynamic width:

HTML

  

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CSS

.container {
  display: flex;
}
.fixed-width {
  width: 200px; /* Fixed width or flex-basis: 200px */
}
.flexible-width {
  flex: 1; /* Stretch to occupy remaining width i.e. flex-grow: 1 and flex-shrink: 1*/
}

Output:

.container {
  display: flex;
  width: 100%;
  color: #fff;
  font-family: Roboto;
}
.fixed-width {
  background: #9BCB3C;
  width: 200px; /* Fixed width */
  text-align: center;
}
.flexible-width {
  background: #88BEF5;
  flex: 1; /* Stretch to occupy remaining width */
  text-align: center;
}

  

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---

Dynamic height:

HTML

  

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CSS

.container {
  display: flex;
}
.fixed-height {
  height: 200px; /* Fixed height or flex-basis: 200px */
}
.flexible-height {
  flex: 1; /* Stretch to occupy remaining height i.e. flex-grow: 1 and flex-shrink: 1*/
}

Output:

.container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  color: #fff;
  font-family: Roboto;
}
.fixed-height {
  background: #9BCB3C;
  height: 50px; /* Fixed height or flex-basis: 100px */
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.flexible-height {
  background: #88BEF5;
  flex: 1; /* Stretch to occupy remaining width */
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

  

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