page alignment and div element alignment

So I am trying to build a page like this :

but it looks like this:

I try to use multiple div and also combine Row and Col to do it but it seems a mess. Some changes also do not have any effects.

Code:

import React from 'react';
import TextContents from '../assets/translations/TextContents';
import BlueButton from '../components/materialdesign/BlueButton';
import TeachIcon from '../assets/images/teach-class-icon.svg';
import HostIcon from '../assets/images/host-a-class-icon.svg';

import './CreateClassAndHost.css';
import { Row, Col } from 'react-bootstrap';

class CreateClassAndHost extends React.Component {

    render() {

        const CreateAClass = 
            <Col className="create-tile">
                <div className="create-style-title">
                    <img
                        src= { TeachIcon }
                        className= "create-icon"
                        alt="TeachIcon"
                    />    
                    <h2>{TextContents.BeATeacher}</h2>
                </div>
                <p>{TextContents.BeATeacherDesc}</p>
                <div className="create-button">
                <BlueButton textSize="13" link_href="/createaclass" text={TextContents.BeATeacherBtn} />
                </div>
            </Col>;

        const CreateAHost = 
            <Col className="create-tile">
                <div className="create-style-title">
                    <img
                        src= { HostIcon }
                        className= "create-icon"
                        alt="HostIcon"
                    />  
                    <h2>{TextContents.HostAClass}</h2>
                </div>
                <p>{TextContents.HostAClassDesc}</p>
                <div className="create-button">
                <BlueButton textSize="13" link_href="/createahost" text={TextContents.HostAClassBtn} />
                </div>
            </Col>;
        return (
            <div className="create-container">
                <h1>{TextContents.CreateClassOrHostTitle}</h1>
                <Row classname="create-section">
                    {CreateAClass}
                    {CreateAHost}
                </Row>
            </div>

        );
    }

}

export default CreateClassAndHost;

Css code :

.create-container {
    width: 80%;
    position: absolute;
    display: flex;
    text-align: center;
    margin-top:5%;
    margin-bottom: 5%;
}

.create-container h1 {
    text-align: center;
    height: 51px;
    margin: auto;
    font-family: Fredoka One;
    font-size: 50px;
    color: #333333;
    width:100%;
}

.create-section {
    width:100%;
}

.create-icon {
    width:47px;
    height:47px ;
}

.create-style-title {

}

.create-tile {
    display: inline-block;
    left: 12px;
    top: 80px;
    text-align: center;
    width: 200px;
    height: 250px;
    background-color: #ffffff;
}


.create-tile h2 {
    font-family: Source Sans Pro;
    font-weight: bold;
    font-size: 30px;
    line-height: 0.7;
    color: #333333;
    letter-spacing: -0.6px;

}

.create-tile p {
    font-family: Source Sans Pro;
    font-size: 20px;
    line-height: 1.6;
    color: #616161;
    width: 280px;
    height: 85px; 
}

.create-button {
    position: relative;
    left: 0px;
    top: 50px;
}

Any idea how to make it looks like the page provide above ?

Also anyone can provide a good resources on how to build properly layout. I would like to also looke at myself on some resource easily showing how to align,.. build…

Thanks