CSS代码：

.test_box {    width: 400px; min-height: 120px; max-height: 300px; _height: 120px; margin-left: auto; margin-right: auto; padding: 3px; outline: 0; border: 1px solid #a0b3d6; font-size: 12px; word-wrap: break-word; overflow-x: hidden; overflow-y: auto; -webkit-user-modify: read-write-plaintext-only; }

HTML代码：

JS代码：

if (typeof document.webkitHidden == "undefined") { // 非chrome浏览器阻止粘贴 box.onpaste = function() { return false; } }