I need to create a header. Screenshot:

I need to transform pictures like show arrows. I tried to use justify-content(properties: space-between) and align-content(flex-end), but without successful. The pictures didn't move with any properties. What's problem? I just started learning CSS flexbox and realize that I'm missing something. Code:
.content {
display: flex;
flex-direction: column;
}
header {
display: flex;
}
.logo {
display: flex;
}
nav {
display: flex;
align-self: center;
}
.search {
display: flex;
align-self: center;
}
<div class="content">
<header>
<div class="logo">
<img src="https://habrastorage.org/webt/uv/ld/0c/uvld0cdesbfdoy0pljighvv9kfu.png">
</div>
<div class="search">
<img src="https://habrastorage.org/webt/g-/ng/kq/g-ngkqbwayj14www_8xz8to94by.png">
</div>
<nav>
<img src="https://habrastorage.org/webt/nq/gn/07/nqgn07phf2raavnq8lyw5rvzrzu.png">
<img src="https://habrastorage.org/webt/oo/lp/jm/oolpjmmcimo017xocx6srwzvioy.png">
<img src="https://habrastorage.org/webt/m7/qw/ic/m7qwichzqecuno-maehtl4ccv2y.png">
<img src="https://habrastorage.org/webt/ux/-2/yi/ux-2yixiyw5lt1djhkl0txaxk3i.png">
</nav>
</header>
</div>