A CodePen by Anthony Young. Awesome textarea - A really nice textarea with a background colour change on focus

index.html

<h2>Awesome Textarea</h2>

<textarea placeholder="This is an awesome comment box" rows="20" name="comment[text]" id="comment_text" cols="40" class="ui-autocomplete-input" autocomplete="off" role="textbox" aria-autocomplete="list" aria-haspopup="true"></textarea>

style.css

body {background: #F0F0F0;}


h2 {margin-left: 55px;}

textarea {
  margin-top: 10px;
  margin-left: 50px;
  width: 500px;
  height: 100px;
  -moz-border-bottom-colors: none;
  -moz-border-left-colors: none;
  -moz-border-right-colors: none;
  -moz-border-top-colors: none;
  background: none repeat scroll 0 0 rgba(0, 0, 0, 0.07);
  border-color: -moz-use-text-color #FFFFFF #FFFFFF -moz-use-text-color;
  border-image: none;
  border-radius: 6px 6px 6px 6px;
  border-style: none solid solid none;
  border-width: medium 1px 1px medium;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.12) inset;
  color: #555555;
  font-family: "Helvetica Neue",Helvetica,Arial,sans-serif;
  font-size: 1em;
  line-height: 1.4em;
  padding: 5px 8px;
  transition: background-color 0.2s ease 0s;
}


textarea:focus {
    background: none repeat scroll 0 0 #FFFFFF;
    outline-width: 0;
}