Problem

Help please

HTML

<header>
        <a href="#"><img src="#" class="logo"></a>
        <ul class="navbar">
            <li><a href="#">Lorem</a></li>
            <li><a href="#">Lorem</a></li>
            <li><a href="#">Lorem</a></li>
            <li><a href="#">Lorem</a></li>
        </ul>
        <div class="headline">
            <h1>Lorem</h1>
            <div class="desc">
                Lorem ipsum dolor sit amet, et denique molestiae sit. Alia mediocrem ei mei, recusabo repudiandae mel et.
            </div>
        </div>
        <a href="#" class="button b1">Lorem ipsum</a>
    </header>
    
<div class="lorem">
    <h2>Lorem ipsum</h2>
        <p>Lorem ipsum dolor sit amet, et denique molestiae sit. </p>
<a class="button" href="#">Lorem ipsum</a>
    </div>

CSS

*
{
  margin: 0;
  padding: 0;
}

.headline h1
{
    line-height: 85%;
    font-size: 7em;
    color: #ffffff;
    width: 5em;
    margin-left: 5vh;
    text-transform: uppercase;
    padding-top: 2em;
}

.navbar
{
    padding-top: 1em;
    padding-right: 3em;
    float: right;
    text-transform: uppercase;
    list-style-type: none;
    display: inline;
}

.navbar li
{
    float: left;
}

.navbar li a
{
    font-size: 0.9em;
    display: block;
    text-align: center;
    padding: 0.8em;
    text-decoration: none;
    color: #ffffff;
}

.logo
{
    width: 15em;
    padding: 1.5em 2em 2em 5vh;
    float: left;
}

.b1
{
    margin-left: 5vh;
    font-size: 0.9em;
    letter-spacing: 0.1em;
    padding: 1.3em 2.8em;
    margin-top: 1em;
}

.button
{

  z-index: 1;
  display: inline-block;
  color: #ffffff;
  text-decoration: none;
  text-transform: uppercase;
  border: solid 1px #ffffff;
  position: relative;
  transition: color 0.2s ease-in;
}

 .button:before
{
    z-index: -1;
    content: '';
    position: absolute;
    top: 0px;
    left: 0px;
    height: 100%;
    width: 100%;
    max-height: 0%;
    background: #ffffff;
    transition: all 0.1s ease-in;
}

  .button:hover
{
    color:#d00807;
}

  .button:hover:before
{
    max-height: 100%;
}

.desc
{
    color: #ffffff;
    width: 25em;
    font-size: 1.2em;
    padding: 2em 0em 2em 5vh;
}

header
{
    background-image: linear-gradient(rgba(0,0,0,0.5),rgba(0,0,0,0.1)),url(#);
    background-position: center;
    background-size: cover;
}

.lorem,.lorem h2,.lorem p,.lorem a
{
 overflow: hidden;   
}

.lorem
{
    background-color:#d00807;
    color: #ffffff;
}

.lorem h2
{
    font-size: 1.7em;
    text-transform: uppercase;
    display: inline-block;
    text-align: center;
    position: relative;
}

.lorem p
{
    font-size: 1em;
    display: inline-block;
    text-align: center;
    position: relative;
}

.lorem a
{
    font-size: 0.9em;
    letter-spacing: 0.1em;
    padding: 1.5em 1.5em;
   ...