React js UI example. bs4 header like startbootstrap

React js UI example and template, bs4 header like startbootstrap! . Take a look at this UI example and see how it can enhance your project. Your can copy or download the code and use it in your project. Don't forget to browse our library of other free React Native templates for even more design and functionality inspiration. Happy coding!
Tags: header

1. First, we need fresh reactjs setup, and for that, we need to run below commands into out terminal, and also we should have latest node version installed on our system:

npx create-react-app my-awesome-project

cd my-awesome-project

npm start

2. Now we need to run below commands into our project terminal to get bootstrap and related modules into our reactjs application:

npm install [email protected] --save

npm start //For start project again

3. Finally for the main output, we need to add below code into our my-awesome-project/src/App.js file or if you have fresh setup then you can replace my-awesome-project/src/App.js file code with below code:

import React from 'react';
import './App.css';
import 'bootstrap/dist/css/bootstrap.min.css';


function App() {
  
	return (
		<div>
			<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet"/>
<header class="masthead">
    <div class="container">
        <div class="row align-items-center">
            <div class="col-lg-7 py-5">
                <h1 class="mb-4">Bootstrap themes, templates, and more to help you start your next project!</h1>
                <h2 class="m-0">Start Bootstrap creates free, open source, MIT license, Bootstrap <a href="#/">themes</a>, <a href="#/">templates</a>, and <a href="#/">code snippets</a> for you to use on any project, <a href="#/">guides</a> to help you learn more about designing and developing with the Bootstrap framework, and premium Bootstrap products.</h2>
            </div>
            <div class="col-lg-5">
                <div class="py-5 px-4 masthead-cards">
                    <div class="d-flex">
                        <a href="#/" class="w-50 pr-3 pb-4">
                            <div class="card border-0 border-bottom-red shadow-lg shadow-hover">
                                <div class="card-body text-center">
                                    <div class="text-center">
                                        <i class="fa fa-pencil fa-4x my-2"></i>
                                    </div>
                                    Themes
                                </div>
                            </div>
                        </a>
                        <a href="#/" class="w-50 pl-3 pb-4">
                            <div class="card border-0 border-bottom-blue shadow-lg shadow-hover">
                                <div class="card-body text-center">
                                    <div class="text-center">
                                        <i class="fa fa-th fa-4x my-2"></i>
                                    </div>
                                    Templates
                                </div>
                            </div>
                        </a>
                    </div>
                    <div class="d-flex">
                        <a href="#/" class="w-50 pr-3">
                            <div class="card border-0 border-bottom-yellow shadow-lg shadow-hover">
                                <div class="card-body text-center">
                                    <div class="text-center">
                                        <i class="fa fa-4x fa-code my-2"></i>
                                    </div>
                                    Snippets
                                </div>
                            </div>
                        </a>
                        <a href="#/" class="w-50 pl-3">
                            <div class="card border-0 border-bottom-green shadow-lg shadow-hover">
                                <div class="card-body text-center">
                                    <div class="text-center">
                                        <i class="fa fa-4x fa-list my-2"></i>
                                    </div>
                                    Guides
                                </div>
                            </div>
                        </a>
                    </div>
                    <div class="shape"></div>
                </div>
            </div>
        </div>
    </div>
    <svg style={{/*pointer-events: none*/}} class="wave" width="100%" height="50px" preserveAspectRatio="none" xmlns="http://www.w3.org/2000/svg" xlink="http://www.w3.org/1999/xlink" viewBox="0 0 1920 75">
        <defs>
            <style>
                .a 
                    fill: none;
                
                
                .b 
                    clip-path: url(#a);
                
                
                .c,
                .d 
                    fill: #f9f9fc;
                
                
                .d 
                    opacity: 0.5;
                    isolation: isolate;
                
            </style>
            <clipPath id="a">
                <rect class="a" width="1920" height="75"></rect>
            </clipPath>
        </defs>
        <title>wave</title>
        <g class="b">
            <path class="c" d="M1963,327H-105V65A2647.49,2647.49,0,0,1,431,19c217.7,3.5,239.6,30.8,470,36,297.3,6.7,367.5-36.2,642-28a2511.41,2511.41,0,0,1,420,48"></path>
        </g>
        <g class="b">
            <path class="d" d="M-127,404H1963V44c-140.1-28-343.3-46.7-566,22-75.5,23.3-118.5,45.9-162,64-48.6,20.2-404.7,128-784,0C355.2,97.7,341.6,78.3,235,50,86.6,10.6-41.8,6.9-127,10"></path>
        </g>
        <g class="b">
            <path class="d" d="M1979,462-155,446V106C251.8,20.2,576.6,15.9,805,30c167.4,10.3,322.3,32.9,680,56,207,13.4,378,20.3,494,24"></path>
        </g>
        <g class="b">
            <path class="d" d="M1998,484H-243V100c445.8,26.8,794.2-4.1,1035-39,141-20.4,231.1-40.1,378-45,349.6-11.6,636.7,73.8,828,150"></path>
        </g>
    </svg>
</header>
		</div>
	);
}
export default App;

4. Now we need to add below code into our my-awesome-project/src/App.css file :

body{margin-top:20px;}

.masthead {
    padding: 3rem 0 7rem;
    position: relative;
    background-color: #dd3d31;
    background-image: url(https://startbootstrap.com/assets/img/overlay.svg), linear-gradient(45deg, #dd3d31 0%, #d22f23 100%);
    background-size: cover;
    z-index: 0
}

.masthead svg.wave {
    position: absolute;
    bottom: -1px;
    left: 0
}

.masthead h1 {
    color: #fff;
    font-weight: 700;
    font-size: 2rem;
    line-height: 1.1;
    z-index: 1
}

.masthead h2 {
    color: rgba(255, 255, 255, .6);
    font-weight: 600;
    z-index: 1;
    font-size: 1.2rem
}

.masthead a {
    color: rgba(255, 255, 255, .8);
    text-decoration: underline;
    z-index: 1
}

.masthead a:hover {
    color: #fff
}

.masthead a:active {
    text-decoration: none
}

@media(min-width:992px) {
    .masthead h1 {
        font-size: 3rem
    }
    .masthead h2 {
        font-size: 1.5rem
    }
}

.masthead .masthead-cards {
    position: relative;
    z-index: 1
}

.masthead .masthead-cards .shape {
    position: absolute;
    height: 100%;
    width: 100%;
    background-color: rgba(255, 255, 255, .3);
    top: 0;
    left: 0;
    z-index: -1;
    border-radius: 30% 70% 70% 30%/30% 30% 70% 70%
}

.masthead .masthead-cards .card {
    opacity: 1;
    font-size: .8rem;
    text-transform: uppercase;
    font-weight: 800;
    letter-spacing: .05rem;
    color: #212529;
    transition: .15s all
}

.masthead .masthead-cards .card:hover {
    margin-top: -.25rem;
    margin-bottom: .25rem
}

.masthead .masthead-cards .card:active {
    margin-top: inherit;
    margin-bottom: inherit
}

.masthead .masthead-cards .card.border-bottom-blue:hover {
    color: #2092ed
}

.masthead .masthead-cards .card.border-bottom-green:hover {
    color: #28a745
}

.masthead .masthead-cards .card.border-bottom-red:hover {
    color: #dd3d31
}

.masthead .masthead-cards .card.border-bottom-yellow:hover {
    color: #ffc107
}

.masthead-page {
    padding: 1rem 0 4rem
}

@media(min-width:992px) {
    .masthead-page h1 {
        font-size: 2.5rem
    }
}

.border-bottom-yellow {
    border-color: #ffc107!important;
}

.border-bottom-red {
    border-color: #dd3d31!important;
}

.border-bottom-blue {
    border-color: #2092ed!important;
}

.border-bottom-green {
    border-color: #28a745!important;
}

.border-bottom-blue, .border-bottom-green, .border-bottom-red, .border-bottom-yellow {
    border-bottom: .4rem solid!important;
}
.shadow-lg {
    box-shadow: 0 2rem 1.5rem -1.5rem rgba(33,37,41,.15),0 0 1.5rem .5rem rgba(33,37,41,.05)!important;
}
.border-0 {
    border: 0!important;
}

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