03.使用styled-components完成Header布局（2）

在index.js的jsx部分加入标签，然后在其头部引用，最后去styled.js中写相关的样式：

index.js完整代码：

import React, { Component } from 'react';
import {
    HeadrerWrapper,
    Logo,
    Nav,
    NavItem,
    NavSearch,
    Addition,
    Button,
} from './style'
class Header extends Component{
    render() {
        return (
            <HeadrerWrapper>
                <Logo href='/' />
                <Nav>
                    <NavItem className='left active'>首页</NavItem>
                    <NavItem className='left'>下载App</NavItem>
                    <NavItem className='right'>登录</NavItem>
                    <NavItem className='right'>Aa</NavItem>
                    <NavSearch></NavSearch>
                </Nav>
                <Addition>
                    <Button className='writting'>写文章</Button>
                    <Button className='reg'>注册</Button>
                </Addition>
            </HeadrerWrapper>
        )
    }
}
export default Header;

styled.js完整代码：

import styled from 'styled-components'
import logoPic from '../../statics/logo.png'
export const HeadrerWrapper = styled.div`
    position:relative;
    height:56px;
    border-bottom:solid 1px #f0f0f0;
`;
export const Logo = styled.a`
    height:56px;
    width:100px;
    position:absolute;
    top:0;
    left:0;
    display:block;
    background:url(${logoPic});
    background-size:contain;
`;
export const Nav = styled.div`
    width:960px;
    height:100%;
    margin:0 auto;
    padding-right:60px;
    /*保证宽度不变*/
    box-sizing:border-box;
`;
export const NavItem = styled.div`
    line-height:56px;
    padding: 0 15px;
    font-size:17px;
    color:#333;
    &.left {
        float:left;
    }
    &.right {
        float:right;
        color:#969696;
    }
    &.active {
        color:#ea6f5a;
    }
    `;
export const NavSearch = styled.input.attrs({
    placeholder: '搜索'
})`
    width:160px;
    height:38px;
    border:none;
    outline:none;
    border-radius:19px;
    background:#eee;
    margin-top:9px;
    margin-left:20px;
    padding:0 20px;
    box-sizing:border-box;
    font-size:14px;
    /*当前组件下的placeholder*/
    &::placeholder{
        color:#999;
    }
 `;
export const Addition = styled.div`
    position:absolute;
    right:0;
    top: 0;
    height:56px;
 ` ;

export const Button = styled.button`
    float:right;
    margin-top:9px;
    margin-right:20px;
    padding:0 20px;
    line-height:38px;
    border-radius:19px;
    border:1px solid #ec6149;
    font-size:14px;
    &.reg{
        color:#ec6149;
        background:white;

    }
    &.writting{
        color:#fff;
        background:#ec6149;
    }
 `

效果：