{
  box-sizing: border-box;
}

body {
	font-family: Arial, Helvetica, sans-serif;
	margin: 0;
}
a {
	text-decoration: none;
    color: inherit;
}

.header {
	padding: 15px;
	text-align: center;
	background: #ffffff;
	color: white;
}

.header h1 {
	font-size: 30px;
	color: #5a5a5a;
}

.navbar {
	overflow: hidden;
	background-color: #333;
	display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.navbar a {
	float: left;
	display: block;
	color: white;
	text-align: center;
	padding: 14px 20px;
	text-decoration: none;
}

.navbar a.right {
	float: right;
}

.navbar a:hover {
	background-color: #ddd;
	color: black;
}

.row {  
	display: -ms-flexbox; /* IE10 */
	display: flex;
	-ms-flex-wrap: wrap; /* IE10 */
	flex-wrap: wrap;
}

.side {
	-ms-flex: 30%; /* IE10 */
	flex: 30%;
	background-color: #f1f1f1;
	padding: 20px;
}

.main {   
	-ms-flex: 70%; /* IE10 */
	flex: 70%;
	background-color: white;
	padding: 20px;
}

.div_banner {
	width: 100%;
	text-align: center;
}
.div_banner img {
	max-height: 70%;
	background-size: cover;
    background-position: center center;
    width: 80%;
    position: relative;
}

.footer {
	padding: 20px;
	text-align: center;
	background: #ddd;
}

/* Responsive layout - when the screen is less than 700px wide, make the two columns stack on top of each other instead of next to each other */
@media screen and (max-width: 700px) {
  .row {   
	flex-direction: column;
  }
}

/* Responsive layout - when the screen is less than 400px wide, make the navigation links stack on top of each other instead of next to each other */
@media screen and (max-width: 400px) {
  .navbar a {
    float: none;
    width: 100%;
  }
}
#logo {
	width: 250px;
	height: 75px;
}
.text_main {
	margin-right: 50px;
	margin-left: 50px;
}
h2 {
	text-align: center;
}
#offer_link {
	text-decoration: underline;
	color: #c10202;
}