JSFiddle - React, Tailwind, and code Playground

HTML

<div class="header">
  <div class="l_head">
    <img src="img/logo.png">
  </div>
  <div class="r_head">
    <div class="top_menu_index">
    </div>
    <img src="img/fon_menu1.png">
  </div>
</div>
<div class="side_1">
  <div class="l_menu">
    <b>строка 1</b>
    <br>
    <a href="">строка 2</a>
  </div>
  <div class="content">
    Контент
  </div>
  <div class="r_menu">
    Правое меню
  </div>
</div>
<div class="footer">
  <center>FOOTER</center>
</div>

CSS

body {
  background-color: #eeeeee;
}

.header {
  height: 168px;
  margin-bottom: 1%;
  border: 1px solid black;
  width: 100%;
}

.l_head {
  display: inline-block;
  text-align: left;
}

.r_head {
  display: inline-block;
  border: 1px solid black;
}

.logo {}

.top_menu_index {
  display: inline-block;
}

.top_menu {}

.side_1 {
  text-align: center;
  width: 100%;
}

.l_menu,
.content,
.r_menu {
  vertical-align: top;
}

.l_menu {
  text-align: center;
  background: #BCC9CD;
  display: inline-block;
  border: 3px double black;
  width: 20%;
  min-width: 150px;
  height: 400px;
}

.content {
  text-align: left;
  background: #BCC9CD;
  display: inline-block;
  border: 3px double black;
  width: 55%;
  min-width: 150px;
  height: 400px;
}

.r_menu {
  text-align: left;
  background: #BCC9CD;
  display: inline-block;
  border: 3px double black;
  width: 20%;
  min-width: 150px;
  height: 400px;
}

.footer {
  margin-top: 1%;
  border: 1px solid black;
  width: 100%;
  height: 100px;
  background: #71AFC0;
}