CODEWITHSUNDEEP
htmlcssflexbox
Code
Code

Reputation: 6251

Multiple background colors in scrollable flexbox

I have a flexbox (flex-direction: row) with 2 columns of content and a fixed height. I want the left and right column to have a red and blue background respectively. If either of the columns overflow, the flexbox's scrollbar appears (the overflowed part is still red/blue). If a column's content height is less than the flexbox's height, the space below should still be red/blue.

Without using gradient colors or javascript, how can I achieve this effect?

Demo (I want the gray part to be blue): 

#c1 {
  background-color: gray;
  display: flex;
  height: 200px;
  overflow-y: auto;
  align-items: baseline;
}
#left {
  flex: 1;
  background-color: red;
}
#right {
  flex: 1;
  background-color: blue;
}
<div id="c1">
    <div id="left">
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
    </div>
    <div id="right">
      <div>line</div>
    </div>
</div>

EDIT

Methods that don't work:

Upvotes: 4

Views: 713

Answers (5)

Code
Code

Reputation: 6251

Working from Nithin Charly's answer, I got this:

(doesn't work properly in IE due to bugs) 

#c1 {
  background-color: gray;
  height: 200px;
  overflow-y: auto;
}

#wrap {
  display: flex;
  min-height: 100%;
  align-items: stretch;
}

#left {
  flex: 1;
  background-color: red;
}

#right {
  flex: 1;
  background-color: blue;
}
<div id="c1">
  <div id="wrap">
    <div id="left">
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
    </div>
    <div id="right">
      <div>line</div>
    </div>
  </div>
</div>

Upvotes: 0

Nithin Charly
Nithin Charly

Reputation: 305

Wrap left and right div with another div, set display flex and min-height:min-content for that div. also set height 100% for left and right div.

    #c1 {
      background-color: gray;
      display: flex;
      height: 200px;
      overflow-y: auto;
    }

#wrap{
  display:flex;
  width:100%;
  min-height:min-content;
}
#left {
  flex: 1;
  background-color: red;
  height:100%;
}
#right {
  flex: 1;
  background-color: blue;
  height:100%;
}
   

 <div id="c1">
      <div id='wrap'>
        <div id="left">
          <div>line</div>
          <div>line</div>
          <div>line</div>
          <div>line</div>
          <div>line</div>
          <div>line</div>
          <div>line</div>
          <div>line</div>
          <div>line</div>
          <div>line</div>
          <div>line</div>
          <div>line</div>
          <div>line</div>
          <div>line</div>
        </div>
        <div id="right">
          <div>line</div>
        </div>
       </div>
    </div>

Upvotes: 1

j-printemps
j-printemps

Reputation: 1298

I think it would be easier to use display: table; for your container, and display: table-cell; for your columns. The elements acting like tables, you can obtain the rendering you want.

I had to add another container thought, due to the fact that you cannot limit the height of a table so easily. 

#c1 {
  background-color: gray;
  height: 200px;
  overflow-y: auto;
}

.table {
  display: table;
  width: 100%;
}

#left {
  background-color: red;
}
#right {
  background-color: blue;
}

#left, #right {
  display: table-cell;
  width: 50%;
}
<div id="c1">
  <div class="table">
    <div id="left">
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
    </div>
    <div id="right">
      <div>line</div>
    </div>
  </div>
</div>

Upvotes: 1

Freelancer
Freelancer

Reputation: 887

When you fix height for parent and using display flex, the height of children is auto fit to height parent. So in this case, you need to use js to change the height of children. If you don't want to use js, you just do as bellow: 

#c1 {
  background-color: gray;
  height: 200px;
  overflow-y: auto;
  
}
#left {
  background-color: red;
}
#right {
  background-color: blue;
}
#left, #right{
  display:table-cell;
  width:200px;
}
<div id="c1">
    <div id="left">
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
    </div>
    <div id="right">
      <div>line</div>
    </div>
</div>

Upvotes: 1

LWilson
LWilson

Reputation: 444

The problem is with align-items: baseline. You can just leave that out or replace it with stretch and you'll get what you're after.

#c1 {
  background-color: gray;
  display: flex;
  height: 200px;
  overflow-y: auto;
  /* align-items: baseline; */

}
#left {
  flex: 1;
  background-color: red;
}
#right {
  flex: 1;
  background-color: blue;
}
<div id="c1">
    <div id="left">
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
      <div>line</div>
    </div>
    <div id="right">
      <div>line</div>
    </div>
</div>

Upvotes: -1

Related Questions