Style 1

<div style="background-color: transparen; border-bottom: gray 1px solid; border-left: gray 1px solid; border-right: gray 1px solid; border-top: gray 1px solid; cursor: text; font-family: consolas, 'Courier New', courier, monospace; font-size: 8pt; line-height: 12pt; margin: 20px 0px 10px; max-height: 200px; overflow: auto; padding-bottom: 4px; padding-left: 4px; padding-right: 4px; padding-top: 4px; width: 97.5%;"><pre style="background-color: transparen; border-bottom-style: none; border-left-style: none; border-right-style: none; border-top-style: none; color: black; font-family: consolas, 'Courier New', courier, monospace; font-size: 8pt; line-height: 12pt; margin: 0em; overflow: visible; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; width: 100%;">nội dung code</pre></div>

Style 2

<form name="MyTextBoxForm">
<input name="button" onclick="javascript:this.form.MyTextBox.focus();this.form.MyTextBox.select();" type="button" value="Select all" />
<textarea cols="59" name="MyTextBox" rows="9" style="background: #eee; border: 1px #A0C4EA dashed; color: #464646;" wrap="on">noi dung code</textarea> </form>