Max-width ignores percentage value

Question

I have two lines: the first has 5 buttons, the second has one div, which should be as long as the buttons.

Here is my code:

BODY * {
  box-sizing: border-box;
}
.container {
  background: blue;
  width: 100%;
  height: 66px;
  position: relative;
}
.logo {
  background: red;
  width: 65px;
  height: 65px;
}
.rightcontainer {
  position: absolute;
  right: 0;
  top: 0;
  background-color: green;
}
.buttons > DIV {
  display: inline-block;
  padding: 5px;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}
.buttons > DIV:first-child {
  max-width: 30%;
}
.search {
  width: 100%;
  background-color: yellow;
}

OKAY:
<div class="container">
  <div class="logo"></div>
  <div class="rightcontainer">
    <div class="buttons">
      <div>Buttons 1</div>
      <div>Buttons 2</div>
      <div>Buttons 3</div>
      <div>Buttons 4</div>
    </div>
    <div class="search">
      Search
    </div>
  </div>
</div>
Not okay: The gap between button 4 and border should be gone
<div class="container">
  <div class="logo"></div>
  <div class="rightcontainer">
    <div class="buttons">
      <div>Buttons 1 long long long long</div>
      <div>Buttons 2</div>
      <div>Buttons 3</div>
      <div>Buttons 4</div>
    </div>
    <div class="search">
      Search
    </div>
  </div>
</div>

Run codeHide result

See this script: https://jsfiddle.net/7a50j4oa/1/

The first button should have a max-widthpercentage.

If the button is larger (used max-width), the width of the second line does not decrease.

This style is a problem (if I use px values, everything works fine)

.buttons > DIV:first-child
{
  max-width:30%;
}

Any ideas how I could achieve this? Did flexbox help?

Thanks in advance.

Answer 1

Decision

Add this to your code:

.rightcontainer {
  width: 45%; /* or another percentage that works for you */
}

Revised script

---

Description

max-width: 30% , .

:

.rightcontainer {
  position: absolute;
  right: 0;
  top: 0;
  background-color: green;
}

:

.buttons > DIV:first-child { max-width: 30%; }

:

10.4 : min-width max-width

.

. .

max-width , .

BODY * {
  box-sizing: border-box;
}
.container {
  background: blue;
  width: 100%;
  height: 66px;
  position: relative;
}
.logo {
  background: red;
  width: 65px;
  height: 65px;
}
.rightcontainer {
  position: absolute;
  right: 0;
  top: 0;
  background-color: green;
  width: 45%;               /* NEW */
}
.buttons > DIV {
  display: inline-block;
  padding: 5px;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}
.buttons > DIV:first-child {
  max-width: 30%;
}
.search {
  width: 100%;
  background-color: yellow;
}

<div class="container">
  <div class="logo"></div>
  <div class="rightcontainer">
    <div class="buttons">
      <div>Buttons 1</div>
      <div>Buttons 2</div>
      <div>Buttons 3</div>
      <div>Buttons 4</div>
    </div>
    <div class="search">Search</div>
  </div>
</div>
Not okay: The gap between button 4 and border should be gone
<div class="container">
  <div class="logo"></div>
  <div class="rightcontainer">
    <div class="buttons">
      <div>Buttons 1 long long long long</div>
      <div>Buttons 2</div>
      <div>Buttons 3</div>
      <div>Buttons 4</div>
    </div>
    <div class="search">Search</div>
  </div>
</div>

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