body{

 background-color:#ffffff;

 background-image:url(img/back3.gif);
 background-repeat:repeat-y;
 background-position: center center;
 background-size: cover;
}
div{
width:640px;
margin-right:auto;
margin-left:auto;
}
textarea{
	color: #333;
	width: 350px;
	font-size: 80%;
	background-color: #ffffff;
	border: #DF7163 2px dashed;
	border-radius: 3em .5em 2em .5em/.4em 2em .5em 3em;
	padding: 5px;
}

.square_btn {
    position: relative;
    display: inline-block;
    font-weight: bold;
    padding: 8px 10px 5px 10px;
    text-decoration: none;
    color: #FFA000;
    background: #fff1da;
    border-bottom: solid 4px #FFA000;
    border-radius: 15px 15px 0 0;
    transition: .4s;
}

.square_btn:hover {
    background: #ffc25c;
    color: #FFF;
}