* {box-sizing: border-box;}
body {
	font: 14px sans-serif; }
	.wrapper{ width: 360px; padding: 20px; }

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

.topnav {
  overflow: hidden;
  background-color: #e9e9e9;
}

.topnav a {
  float: left;
  display: block;
  color: black;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 17px;
}

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

.topnav a.active {
  background-color: #2196F3;
  color: white;
}

.topnav .search-container {
  float: right;
}

.topnav input[type=text] {
  padding: 6px;
  margin-top: 8px;
  font-size: 17px;
  border: none;
}

.topnav .search-container button {
  float: right;
  padding: 6px 10px;
  margin-top: 8px;
  margin-right: 16px;
  background: #ddd;
  font-size: 17px;
  border: none;
  cursor: pointer;
}

.topnav .search-container button:hover {
  background: #ccc;
}

@media screen and (max-width: 600px) {
  .topnav .search-container {
    float: none;
  }
  .topnav a, .topnav input[type=text], .topnav .search-container button {
    float: none;
    display: block;
    text-align: left;
    width: 100%;
    margin: 0;
    padding: 14px;
  }
  .topnav input[type=text] {
    border: 1px solid #ccc;  
  }
}

.main_btn {
  background-color: #1877f2;
  border: none;
  border-radius: 4px;
  color: white;
  padding: 10px 20px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font: inherit;
  font-size: 20px;
  font-weight: 400;
  margin: 4px 2px;
  cursor: pointer;
}  
.create_btn {
  background-color: #42b72a;
  border: none;
  border-radius: 4px;
  color: white;
  padding: 10px 20px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font: inherit;
  font-size: 20px;
  font-weight: 400;
  margin: 4px 2px;
  cursor: pointer;
}

table, th, td {
  border: 1px solid black;
  padding: 2px;
  text-align: center;
}