clash-verge-rev/src/assets/styles/layout.scss

.layout {
  width: 100%;
  height: 100%;
  display: flex;

  &__sidebar {
    position: relative;
    height: 100vh;
    flex: 1 1 25%;
  }

  &__traffic {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 18px;

    > div {
      margin: 0 auto;
    }
  }

  &__content {
    flex: 1 1 75%;
    padding: 20px 30px;
    box-sizing: border-box;
  }
}