HTML Boilerplate

minimal

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<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <meta http-equiv="X-UA-Compatible" content="ie=edge">
    </head>
    <body>
        <h1>Hello world</h1>
    </body>
</html>

d3 starter

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<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <meta http-equiv="X-UA-Compatible" content="ie=edge">
    </head>
    <body>
        <h1>Hello world</h1>
        <div id="container"></div>
        <script type="module">

        import * as d3 from "https://cdn.jsdelivr.net/npm/d3@7/+esm";

        // Declare the chart dimensions and margins.
        const width = 640;
        const height = 400;
        const marginTop = 20;
        const marginRight = 20;
        const marginBottom = 30;
        const marginLeft = 40;

        // Declare the x (horizontal position) scale.
        const x = d3.scaleUtc()
            .domain([new Date("2023-01-01"), new Date("2024-01-01")])
            .range([marginLeft, width - marginRight]);

        // Declare the y (vertical position) scale.
        const y = d3.scaleLinear()
            .domain([0, 100])
            .range([height - marginBottom, marginTop]);

        // Create the SVG container.
        const svg = d3.create("svg")
            .attr("width", width)
            .attr("height", height);

        // Add the x-axis.
        svg.append("g")
            .attr("transform", `translate(0,${height - marginBottom})`)
            .call(d3.axisBottom(x));

        // Add the y-axis.
        svg.append("g")
            .attr("transform", `translate(${marginLeft},0)`)
            .call(d3.axisLeft(y));

        // Append the SVG element.
        container.append(svg.node());

        </script>
    </body>
</html>

full css reset

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<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <meta http-equiv="X-UA-Compatible" content="ie=edge">
		<meta name="darkreader-lock">
        <title>title</title>
		<style>
			/* http://meyerweb.com/eric/tools/css/reset/ 
			   v2.0 | 20110126
			   License: none (public domain)
			*/
			html, body, div, span, applet, object, iframe,
			h1, h2, h3, h4, h5, h6, p, blockquote, pre,
			a, abbr, acronym, address, big, cite, code,
			del, dfn, em, img, ins, kbd, q, s, samp,
			small, strike, strong, sub, sup, tt, var,
			b, u, i, center,
			dl, dt, dd, ol, ul, li,
			fieldset, form, label, legend,
			table, caption, tbody, tfoot, thead, tr, th, td,
			article, aside, canvas, details, embed, 
			figure, figcaption, footer, header, hgroup, 
			menu, nav, output, ruby, section, summary,
			time, mark, audio, video {
				margin: 0;
				padding: 0;
				border: 0;
				font-size: 100%;
				font: inherit;
				vertical-align: baseline;
			}
			/* HTML5 display-role reset for older browsers */
			article, aside, details, figcaption, figure, 
			footer, header, hgroup, menu, nav, section {
				display: block;
			}
			body {
				line-height: 1;
			}
			ol, ul {
				list-style: none;
			}
			blockquote, q {
				quotes: none;
			}
			blockquote:before, blockquote:after,
			q:before, q:after {
				content: '';
				content: none;
			}
			table {
				border-collapse: collapse;
				border-spacing: 0;
			}
			/*my styles*/
		</style>
    </head>
    <body>
        <h1>Header</h1>
    </body>
</html>