* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
ul { list-style: none; }
a { text-decoration: none; }
body { line-height: normal; overflow-x: hidden; }
img { max-width: 100%; height: auto; }
.flex-sb { display: flex; flex-wrap: wrap; justify-content: space-between; }