#simuheader{
padding:5px;
color:#fff;
font-size:16px;
font-weight:bold;
text-align:center;
background-color:#83B832;
margin:0 auto;
border-bottom:3px solid #78A92E;
margin-bottom:8px;
width: 80%;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
.grid {
width: 100%;
padding: 10px 10px;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box; 
}
.output {
width: 100%;
height:300px;
box-shadow:0 0 8px #888;
border:1px solid #FF7300;
}
textarea {
width: 100%;
height: 200px;
}
iframe {
border: none;
width: 100%; 
height:300px;
}