How to implement:

With tailwind installed in your project (tutorial), implement these tailwind classes in your parent div where it will reflect the background.

export default function Background() {
  return (
    <section className="flex flex-col h-screen bg-gradient-to-t from-[#000] items-center relative to-[#141521]">
                <svg className="absolute" fill="none" height="150%" viewBox="0 0 400 400" width="100%" xmlns="http://www.w3.org/2000/svg">
                  <g clip-path="url(#clip0_17_17)">
                    <g filter="url(#filter0_f_17_17)">
                      <path d="M128.6 0H0V322.2L51.5 67.5L128.6 0Z" fill="#EB03FF"></path>
                      <path d="M0 322.2V400H240H320L51.5 67.5L0 322.2Z" fill="#FF0F9F"></path>
                      <path d="M320 400H400V78.75L51.5 67.5L320 400Z" fill="#3A0D84"></path>

                     {/*
                        <path d="M400 0H128.6L51.5 67.5L400 78.75V0Z" fill="#FAD8F4"></path>
                    */}
                      
                    </g>
                  </g>
                  <defs>
                    <filter color-interpolation-filters="sRGB" filterUnits="userSpaceOnUse" height="720.666" id="filter0_f_17_17" width="720.666" x="-160.333" y="-160.333">
                      <feFlood flood-opacity="0" result="BackgroundImageFix"></feFlood>
                      <feBlend in="SourceGraphic" in2="BackgroundImageFix" mode="normal" result="shape"></feBlend>
                      <feGaussianBlur result="effect1_foregroundBlur_17_17" stdDeviation="80.1666"></feGaussianBlur>
                    </filter>
                  </defs>
                </svg>

                { your page / component }
              </section>
  );
}

View background:

Mobile and Desktop:

Note

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