*{
    text-align: center;
    margin-bottom: 10px;
    width: 100%;
    box-sizing: border-box;
}

.wrapper{
    width: 1000px;
    margin: 0 auto;
}

header{
    background-color:rgb(34, 148, 201);
    width: 100%;
    height: 80px;
}

.header-img{
    width: 90%;
    height: 60px;
    margin: auto;
    display: block;
}

img{
    width: 120px;
    height: 50px;
    margin: auto;
    display: block;
}

nav{
    background-color: rgb(34, 148, 201);
    width: 100%;
    height: 70px;
}

li{
    display: inline;
    margin-right: 70px;
}

aside{
    background-color: rgb(34, 148, 201);
    width: 290px;
    height: 400px;
    float: left;
}

.aside-img{
    width: 200px;
    height: 350px;
}

section{
    background-color: rgb(15, 90, 177);
    width: 700px;
    height: 400px;
    display: inline-block;
}

article{
    background-color: rgb(34, 51, 201);
    width: 95%;
    height: 300px;
    margin: auto;
}

details{
    background-color: rgb(6, 73, 219);
    width: 100%;
    height: 100px;
}

summary{
    background-color: rgb(34, 51, 201);
    width: 100%;
    height: 70px;
}

footer{
    background-color: rgb(34, 148, 201);
    width: 100%;
    height: 55px;
    text-align: center;
    padding: 20px 0px;
    font-size: 20px;
}