position a la old school

index.html

<header>
  <ul>
    <li>login</li>
    |
    <li>signup</li>
    |
    <li>home</li>
  </ul>
</header>

<section id="home">
  <h1>Home</h1>
  <h2>Lorem ipsum dolor sit amet consectetur adipisicing elit. Dicta repellendus eaque fuga quis, cumque id inventore exercitationem incidunt optio vero sed voluptatibus totam. Officiis similique nesciunt repellat dolor voluptate modi.</h2>
</section>

<section id="signup">
  <h2>Signup</h2>
  <div class="email"></div>
  <div class="password"></div>
</section>

<section id="login">
  <h2>Login</h2>
  <div class="email"></div>
  <div class="password"></div>
</section>

position-a-la-old-school.markdown

position a la old school

A Pen by Diego Vazquez on CodePen.

License.

style.css

header {
  width: 100%;
  height: 20px;
  background-color: goldenrod;
  position: fixed;
  top: 0px;
}

li {
  display: inline;
}

ul {
  float: right;
}

* {
  margin: 0;
}

#home {
  padding-top: 20px;
  text-align: center;
  background-color: rgba(255,0,0,0.3)
}

#signup {
  text-align: center;
  background-color: rgba(123,100,255,0.3);
  position: absolute;
  width: 100%;
}

#signup .email, #signup .password {
  margin-bottom: 10px;
  width: 100px;
  height: 20px;
  background-color: black;
  position: relative;
  left: calc(50% - 50px);
}

#login {
  margin-top: 90px;
  text-align: center;
  background-color: rgba(215,202,42,0.4);   width: 100%;
}

#login .email, #login .password {
  margin-bottom: 10px;
  width: 100px;
  height: 20px;
  background-color: black;
  position: relative;
  left: calc(50% - 50px);
}