.wrapper_steel_stair { 
	width: 100%;
	margin: 0 auto;
	max-width: 800px;
	box-shadow: rgb(61, 179, 114) 2px 2px 15px;
	border: 8px solid rgb(46, 41, 41);
	box-sizing: border-box;
	padding: 8px;
	min-height: 350px;
}
table input {
	text-align: center;
}
legend {
	margin: 10px 0 5px 0 !important;
}
td {
	padding: 1px !important;
	text-align: center;
	vertical-align: middle !important;
}
th, thead {
	text-align: center !important;
	position: sticky;
  	top: -2px;
  	background: white;
  	vertical-align: middle !important;
}
table {
	margin-top: 15px;
	font-size: 0.9em !important;
}
output {
	color: blue !important;
	font-size: 1em !important;
	font-weight: bold;
}
.image-d {
	width: 96%;
	border: 1px dashed black;
	margin: 2%;
}
.image-d img {
	width: 100%;
}
.text_left {
	text-align: left;
}
.text_left:before {
	content: '';
	margin-right: 10px;
}
.canvas1 {
	overflow: auto;
}
.canvas_hide {
	display: none;
}
.btn-dwg {
	margin: 5px !important;
}
.error {
	color: red !important;
	font-weight: bold !important;
	font-size: 1.1em !important;
}
@media (max-width: 600px) {
	.wrapper_steel_stair {
		padding: 5px !important;
		border: 5px solid rgb(46, 41, 41);	
	}
	table {
		font-size: 0.85em !important;
	}
	.input-group-addon {
		padding: 5px !important;
	}
}