webpage-css.css

.main-header{
    background-color: #292c2f;
    box-shadow: 1px 2px 2px rgba(0, 0, 0, 0.15);
    padding: 20px 40px;
    height: 80px;
    box-sizing: border-box;
    max-width: 1500px;
    text-align: center;
    margin: 0 auto;
}

.main-header h1{
    
    float: left;
    font: normal 28px Cookie, Arial, Helvetica, sans-serif;
    line-height: 40px;
    margin: 0;
}

.main-header span{
    color: #5383d3;
}

.main-header a{
    color: #ffffff;
    text-decoration: none;
}

.main-header nav{
    font: 16px, Arial, Helvetica , sans-serif;
    line-height: 40px;
    float: right;
}

.main-header nav a{
    display: inline-block;
    padding: 0 5px;
    text-decoration: none;
    color: #ffffff;
    font-size: 16px;
    opacity: 0.9;
}

.main-header nav a:hover{
    opacity: 1;
}

.main-header nav a.selected{
    color: #608bd2;
    pointer-events: none;
    opacity: 1;
}


.button-type1 {
    display: inline-block;
    text-align: center;
    border: none;
    padding: 8px 15px;
    font-weight: 600;
    font-size: 16px;
    position: relative;
    color: #fff;
    cursor: pointer;
    background: #d82a4e;
}

.main-header button{
    
    margin-left: 123px;
}


@media all and (max-width: 600px){
    
    .main-header{
        padding: 20px 0;
        height: 75px;
    }
    
    .main-header h1{
        float: none;
        margin: -8px 0 10px;
        text-align: center;
        font-size: 24px;
        line-height: 1;
    }
    
    .main-header nav{
        line-height: 1;
        float: none;
    }
    
    .main-header nav a{
        font-size: 13px;
    }
    
    
}
body {
    background: url('https://source.unsplash.com/twukN12EN7c/1920x1080') no-repeat center center fixed;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    background-size: cover;
    -o-background-size: cover;
  }