7b2主题美化-给评论框添加背景图

.com-form-textarea textarea {
	background-color: transparent;
	background: linear-gradient(rgba(0, 0, 0, 0.05), rgba(0, 0, 0, 0.05)), url(/img/pinglu.png) right 10px bottom 10px no-repeat;
	-moz-transition: ease-in-out 0.45s;
	-webkit-transition: ease-in-out 0.45s;
	-o-transition: ease-in-out 0.45s;
	-ms-transition: ease-in-out 0.45s;
	transition: ease-in-out 0.45s;
}
.com-form-textarea textarea:focus {
	background-position-y: 789px;
	-moz-transition: ease-in-out 0.45s;
	-webkit-transition: ease-in-out 0.45s;
	-o-transition: ease-in-out 0.45s;
	-ms-transition: ease-in-out 0.45s;
	transition: ease-in-out 0.45s;
}