box with copy button
Text area code < br > < br > < textarea style = " border-style: solid; border-width: 1px 1px 1px 20px; border-color: #4072a1; width: 100%; height: 300px; line-height: 16px; resize: none; " id = " html1 " readonly > < / textarea > < div style = " font-size:13px; font-family: comic sans ms; color: blue; " > < button onclick = " copyThis1() " > Copy This Code < / button > < / div > < script > function copyThis1 ( ) { var copyText = document . getElementById ( " html1 " ) ; copyText . select ( ) ; copyText . setSelectionRange ( 0 , 99999 ) document . execCommand ( " copy " ) ; alert ( " Code snippet copied to clipboard " ) ; } < / script > < br > < br > Online Syntax highlighting tool https://tohtml.com/