*{
margin: 0;
padding: 0;
font-family: tahoma, arial;
}

header{
background: url('tlo.jpg') center;
height: 100vh;
width: 100vw;
background-size: cover;
display: flex;
align-items: center;
justify-content: center;
flex-direction: column;
}

h1, h2{
text-align:center;
color: #ddd;
}

h1{
font-size: 40px;
margin-bottom: 20px;
}

h2{
font-size: 26px;
}

button{
position: absolute;
bottom: 20%;
left: 50%;
width: 260px;
height: 70px;
padding: 20 px;
background-color: brown;
border: 3px solid darkred;
color: #fff;
font-size: 20 px;
margin-top: -35px;
margin-left: -130px;
}