What is the best way to overlay an SVG line on top of a CSS style?

Is there a way to make SVG lines appear on top of CSS-styled elements in my HTML file? I have a white background SVG created with JavaScript using d3, and I am adding CSS-styled rectangles on top of it. However, I also want SVG lines (created with JavaScript) to go over these rectangles but they keep appearing behind them. Any advice on how to solve this issue? Here's how I create the white background with d3:

var vizSVG = d3.select("#viz")
                    .append("svg:svg")
                    .attr("width",page_width)
                    .attr("height",page_height)

I create the CSS rectangles within an HTML style element like this:

<style>
                rectangle{
                    border-radius: 8px;
                    width:20%;
                    height:32px;
                    text-indent:10px;
                    padding-top:20px;
                    padding-left:12px;
                    font-family: Courier, Bold, sans-serif;
                    font-size: 13px;
                    display: block;
                    }
</style>

Lastly, I want to add the SVG lines with d3 as follows:

vizSVG.append("line")
    .attr("x1",0)
    .attr("y1",0)
    .attr("x2",1000)
    .attr("y2",1000)
    .style("stroke", "black")
    .style("stroke-width", 150)
    .attr("stroke-linecap","round");

Any suggestions on how to ensure the SVG lines appear above the CSS rectangles?

Answer №1

Adjusting the z-index parameter in my CSS stylesheet proved to be beneficial. Now I just need to figure out how to set the z-index for my SVG elements so that they appear correctly on top of other content. Many thanks to all who provided insights!

Dante

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