insertAdjacentHTML() This method is used to insert HTML code or plain text in a location relative to an existing HTML element. If HTML code is part of the text, the HTML code will be rendered by the browser. syntax: insertAdjacentHTML(where , plaintext or HTML code) This method is used with the following: A ACRONYM ADDRESS APPLET AREA B BIG BLOCKQUOTE BODY BR BUTTON CAPTION CENTER CITE CODE DD DEL DFN DIR DIV DL DT EM EMBED FIELDSET FONT FORM H1 H2 H3 H4 H5 H6 I IFRAME IMG INS KBD LABEL LEGEND LI LISTING MARQUEE MENU OL P PLAINTEXT PRE Q S SAMP SCRIPT SELECT SMALL SPAN STRIKE STRONG STYLE SUB SUP TABLE TBODY TD TEXTAREA TFOOT TH THEAD TR TT U UL VAR XMP button checkbox fileUpload password radio reset submit text