@charset "utf-8";
* {box-sizing:border-box;}

body { 
  margin: 0px;
	padding: 0px;
  font-family: Arial, Helvetica, sans-serif;
}

.header {
  overflow: hidden;
  background-color: #f1f1f1;
  padding: 15px 60px;
	}
.banner{
	display: flex;
	justify-content: center;
	margin-left: auto;
	margin-right: auto;margin-top: 10%;
	width: auto;
}

.header a {
  float: left;
  color: black;
  text-align: center;
  padding: 20px;
  text-decoration: none;
  font-size: 14px; 
  line-height: 5px;
  border-radius: 4px;
}
.header a.logo {
  font-size: 0px;
  font-weight: bold;
}

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

.header a.active {
  background-color: dodgerblue;
  color: white;
}

.header-right {
  float: right;
	padding: inherit;
}

@media screen and (max-width: 500px) {
  .header a {
    float: none;
    display: block;
    text-align: left;
  }
  
  .header-right {
    float: center;
  }
}