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将DIV拉伸到父级的高度

styled-components reactjs css

-1

Colin Ricardo · 技术社区 · 6 年前

我知道这个问题的一些变化已经被问过很多次了。

但是,我似乎无法使用推荐的方法来实现这一点。

为什么是 flex: 1 似乎被忽视了?

目的是让红色容器填满其下方的可用空间。

代码沙盒链接 here .

import React from "react";
import { render } from "react-dom";
import styled, { createGlobalStyle, ThemeProvider } from "styled-components";

const Style = createGlobalStyle`
  body, html {
    height: 100%;
    background: green;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    overflow-y: auto;
  }
`;

const FlexCol = styled.div`
  display: flex;
  flex-direction: column;
`;

const Layout = ({ children }) => {
  return (
    <div>
      <Header>header</Header>
      <FlexCol>{children}</FlexCol>
    </div>
  );
};

const Header = styled.div`
  height: 50;
  background: blue;
`;

const Home = () => {
  return (
    <div>
      <Feed />
    </div>
  );
};

const FeedContainer = styled.div`
  display: flex;
  flex-direction: column;
  flex: 1;
  background: red;
`;

const Feed = () => <FeedContainer>something</FeedContainer>;

const App = () => {
  return (
    <Layout>
      <Home />
    </Layout>
  );
};

render(
  <ThemeProvider theme={{}}>
    <React.Fragment>
      <Style />
      <App />
    </React.Fragment>
  </ThemeProvider>,
  document.getElementById("root")
);

2 回复 | 直到 6 年前

Gleb Kostyunin 6 年前

设置中缺少的是主体和布局之间中间容器的高度。呈现React应用程序的容器:根。

增加100%的高度可以解决问题:

const Style = createGlobalStyle`
  body, html {
    height: 100%;
    background: green;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    overflow-y: auto;
  }
  #root { //<-- this thingie
    height: 100%;
  }
`;

这里有一个更新的沙盒: https://codesandbox.io/s/xrw84wkw54

Colin Ricardo 6 年前

为了将来参考,也可以通过设置 Layout 并使用 flexGrow 相关的地方。

import React from "react";
import { render } from "react-dom";
import styled, { createGlobalStyle, ThemeProvider } from "styled-components";

const Style = createGlobalStyle`
  body, html {
    height: 100%;
    background: green;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    overflow-y: auto;
  }
`;

const FlexCol = styled.div`
  display: flex;
  flex-direction: column;
  flex-grow: 1;
`;

const Layout = ({ children }) => {
  return (
    <div style={{ height: "100vh", display: "flex", flexDirection: "column" }}>
      <Header>header</Header>
      <FlexCol>{children}</FlexCol>
    </div>
  );
};

const Header = styled.div`
  height: 50;
  background: blue;
`;

const Home = () => {
  return (
    <div
      style={{
        height: "100%"
      }}
    >
      <Feed />
    </div>
  );
};

const FeedContainer = styled.div`
  display: flex;
  flex: 1;
  background: red;
  height: 100%;
  width: 100px;
`;

const Feed = () => <FeedContainer>something</FeedContainer>;

const App = () => {
  return (
    <Layout>
      <Home />
    </Layout>
  );
};

render(
  <ThemeProvider theme={{}}>
    <React.Fragment>
      <Style />
      <App />
    </React.Fragment>
  </ThemeProvider>,
  document.getElementById("root")
);

这给出: