body{
    margin: 0;
    font-family: Arial, sans-serif;
}

.sisaltoleveys, .container {
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 30px;
    padding-right: 30px;
}

.container {
    min-height: 500px;
    padding-top: 10px;
    padding-bottom: 30px;
}

header, nav {
    padding-top: 10px;
    padding-bottom: 10px;
}

header img{
    float: right;
}

header {
    background-color: rgb(0, 255, 128);
    overflow: auto;
}

nav {
    background-color: aquamarine;
}

main {
     overflow: auto;
}

.oikealla{
    float: right;
    margin-left: 10px;
}

footer {
    background-color: rgb(31, 31, 31);
    color: #fff;
    padding-top: 20px;
    padding-bottom: 40px;
    clear: both;
}