csslayout/client/patterns/initial-avatar/Details.tsx

/**
 * A collection of popular layouts and patterns made with CSS (https://csslayout.io)
 * (c) 2019 - 2021 Nguyen Huu Phuoc <https://twitter.com/nghuuphuoc>
 */

import * as React from 'react';
import { Helmet } from 'react-helmet';
import { Link } from 'react-router-dom';

import RelatedPatterns from '../../components/RelatedPatterns';
import Pattern from '../../constants/Pattern';
import DetailsLayout from '../../layouts/DetailsLayout';
import BrowserFrame from '../../placeholders/BrowserFrame';

const Details: React.FC<{}> = () => {
    return (
        <DetailsLayout pattern={Pattern.InitialAvatar}>
            <Helmet>
                <meta name="description" content="Create an initial avatar with CSS" />
                <meta name="og:description" content="Create an initial avatar with CSS" />
                <meta name="twitter:description" content="Create an initial avatar with CSS" />
                <meta name="keywords" content="css avatar" />
            </Helmet>
            <div className='p-8 pb-20'>
                <div style={{ lineHeight: 1.5, marginBottom: '16px' }}>
                    To center the content, you also can use other technique demonstrated in
                    the <Link to='/patterns/centering'>Centering</Link> pattern.
                </div>
                <BrowserFrame
html={`
<div class="avatar">
    <div class="avatar__letters">
        <!-- The letters -->
        ...
    </div>
</div>
`}
css={`
.avatar {
    /* Center the content */
    display: inline-block;
    vertical-align: middle;

    /* Used to position the content */
    position: relative;

    /* Colors */
    background-color: rgba(0, 0, 0, .3);
    color: #FFF;

    /* Rounded border */
    border-radius: 50%;
    height: 48px;
    width: 48px;
}

.avatar__letters {
    /* Center the content */
    left: 50%;
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
}
`}
                >
                    <div
                        style={{
                            alignItems: 'center',
                            display: 'flex',
                            flexDirection: 'column',
                            height: '100%',
                            justifyContent: 'center',
                            padding: '8px',
                        }}
                    >
                        <div
                            style={{
                                backgroundColor: 'rgba(0, 0, 0, 0.3)',
                                borderRadius: '50%',
                                color: '#FFF',
                                display: 'inline-block',
                                fontSize: '24px',
                                height: '48px',
                                position: 'relative',
                                verticalAlign: 'middle',
                                width: '48px',
                            }}
                        >
                            <div
                                style={{
                                    left: '50%',
                                    position: 'absolute',
                                    top: '50%',
                                    transform: 'translate(-50%, -50%)',
                                }}
                            >
                                PN
                            </div>
                        </div>
                    </div>
                </BrowserFrame>
            </div>

            <RelatedPatterns
                patterns={[
                    Pattern.Avatar,
                    Pattern.AvatarList,
                    Pattern.Badge,
                    Pattern.Centering,
                    Pattern.PresenceIndicator,
                ]}
            />
        </DetailsLayout>
    );
};

export default Details;