きれいに書くこと

section.point1 {
}
section.point3 {
}
section.point1 div.pattern li{
}
section.point1 div.pattern ul{
}
section.point4 {
}
section.point2 {
}

って書くと、読みづらいので、順番だてて書く

section.point1 {
}
section.point1 div.pattern li{
}
section.point1 div.pattern ul{
}

section.point2 {
}

section.point3 {
}

section.point4 {
}