*{
	box-sizing: border-box;
}
body{
	background: #81bcd8;
}
.site-header{
    background: #fff;
    display: flex;
    justify-content: space-between;
    padding: 20px;
    position: fixed;
    top: 0;
    transition: .5s;
    width: 100%;
}
.site-logo img{
    height: 20px;
    width: auto;
}
.gnav__menu{
    display: flex;
}
.gnav__menu__item{
    margin-left: 20px;
}
.gnav__menu__item a{
    color: #333;
    text-decoration: none;
}
.hero{
    max-height: 500px;
    overflow: hidden;
}
.hero img{
    height: auto;
    width: 100%;
}
.content{
    line-height: 1.6;
    margin: 0 auto;
    padding-top: 100px;
    width: 800px;
}
.content p{
    margin-bottom: 40px;
}
.site-footer{
    background: #333;
    padding: 80px 0;
}
.copyright{
    color: #fff;
    font-size: 12px;
    text-align: center;
}