class replaceElement {
constructor(ele) {
this.element = ele;
this.sybol = ele.className.replace("font-change-", "");
this.insertSVG();
}
insertSVG() {
let svgCont = document.createElementNS('http://www.w3.org/2000/svg', 'svg');
let useCont = document.createElementNS('http://www.w3.org/2000/svg', 'use');
useCont.setAttributeNS('http://www.w3.org/1999/xlink', 'href', `#${this.sybol}`);
svgCont.append(useCont);
svgCont.setAttributeNS(null, 'height', '1em');
svgCont.setAttributeNS(null, 'viewBox', '0 0 385.278 385.278');
this.element.append(svgCont);
}
}
let changedFonts = [];
for (let element of document.querySelectorAll('i[class^="font-change-"]')) {
changedFonts.push(new replaceElement(element))
}
body {
font-size: 21px;
}
It's looking like it might <i class="font-change-rain"></i> so don't forget your <i class="font-change-umbrella"></i>
<!-- Again just declaring the SVGs -->
<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 385.278 385.278" style="enable-background:new 0 0 385.278 385.278;" xml:space="preserve">
<defs>
<g id="umbrella">
<path d="M192.599,0c14.359,0.015,25.988,11.667,25.973,26.027c-0.002,1.683-0.167,3.362-0.493,5.013 c-16.892-2.541-34.068-2.541-50.96,0c-2.784-14.087,6.38-27.763,20.467-30.547C189.237,0.167,190.916,0.002,192.599,0L192.599,0z" />
<path d="M177.279,349.72V147.48c0-7.036,5.704-12.74,12.74-12.74s12.74,5.704,12.74,12.74v202.24 c-0.353,5.622,3.919,10.466,9.542,10.818c5.622,0.353,10.466-3.919,10.818-9.542c0.027-0.425,0.027-0.852,0-1.277 c0-7.036,5.704-12.74,12.74-12.74c7.036,0,12.74,5.704,12.74,12.74c0.006,9.442-3.751,18.497-10.44,25.16 c-13.941,13.896-36.507,13.859-50.402-0.082c-6.648-6.67-10.386-15.7-10.398-25.118L177.279,349.72z"/>
<path d="M23.439,205.96h-0.32c-4.021,0-7.28-3.259-7.28-7.28c0.012-97.644,79.179-176.79,176.822-176.778 c97.626,0.012,176.765,79.151,176.778,176.778c-0.022,4.012-3.268,7.258-7.28,7.28h-0.32c-4.012-0.022-7.258-3.268-7.28-7.28 c0-27.117-21.983-49.1-49.1-49.1c-27.117,0-49.1,21.983-49.1,49.1c0,4.032-3.268,7.3-7.3,7.3c-4.032,0-7.3-3.268-7.3-7.3 c0.006-27.106-21.964-49.084-49.07-49.09s-49.084,21.964-49.09,49.07c0,0.007,0,0.013,0,0.02c0,4.032-3.268,7.3-7.3,7.3 s-7.3-3.268-7.3-7.3c0-27.117-21.983-49.1-49.1-49.1s-49.1,21.983-49.1,49.1c0,4.021-3.259,7.28-7.28,7.28 C23.492,205.96,23.466,205.96,23.439,205.96z"/>
</g>
<g id="rain">
<path d="M303.204,111.054c45.365,0,82.14,36.775,82.14,82.14s-36.775,82.14-82.14,82.14l0,0H64.244 C28.765,275.337,0.002,246.578,0,211.099s28.757-64.242,64.236-64.244c0.003,0,0.006,0,0.009,0c1.467,0,2.92,0,4.36,0 c-5.38-54.966,34.818-103.885,89.784-109.265c51.899-5.079,98.988,30.574,108.176,81.905 C277.957,113.874,290.501,110.985,303.204,111.054L303.204,111.054z"/>
<path d="M215.524,289.254l20.56,29.36c2.298,3.314,1.474,7.862-1.84,10.16s-7.862,1.474-10.16-1.84l0,0 l-26.4-37.68L215.524,289.254z M166.884,289.254l33.28,47.52c2.298,3.314,1.474,7.862-1.84,10.16s-7.863,1.474-10.16-1.84l0,0 l-39.12-56L166.884,289.254z M118.244,289.254l20.56,29.36c2.298,3.314,1.474,7.862-1.84,10.16s-7.863,1.474-10.16-1.84l0,0 l-26.12-37.68L118.244,289.254z M264.164,289.254l33.28,47.52c2.298,3.314,1.474,7.862-1.84,10.16s-7.862,1.474-10.16-1.84l0,0 l-12.76-18.16l-26.4-37.68H264.164z"/>
</g>
</defs>
</svg>