tu-view-plus/es/src/layout/style/layout.css

.tu-layout {
  display: flex;
  flex: 1;
  flex-direction: column;
  margin: 0;
  padding: 0;
}
.tu-layout__sider {
  position: relative;
  flex: none;
  width: auto;
  margin: 0;
  padding: 0;
  transition: width var(--tu-transition-duration-2, 0.2s) cubic-bezier(0.34, 0.69, 0.1, 1);
}
.tu-layout__sider-children {
  height: 100%;
}

.tu-layout__sider-trigger {
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  width: 100%;
  height: 48px;
  color: var(--tu-color-text, #71757f);
  cursor: pointer;
  transition: width var(--tu-transition-duration-2, 0.2s) cubic-bezier(0.34, 0.69, 0.1, 1);
}

.tu-layout__sider.is-collapsed .tu-layout__children::-webkit-scrollbar {
  width: 0;
}

.tu-layout__sider.is-has-trigger {
  box-sizing: border-box;
  padding-bottom: 48px;
}

.tu-layout__header {
  flex: 0 0 auto;
  box-sizing: border-box;
  margin: 0;
}

.tu-layout__content {
  flex: 1;
}

.tu-layout__footer {
  flex: 0 0 auto;
  margin: 0;
}

.tu-layout.is-has-sider {
  flex-direction: row;
  overflow-x: hidden;
}
.tu-layout.is-has-sider .tu-layout__content {
  overflow-x: hidden;
}