@font-face {
  font-family: 'Open Sans';
  font-style: normal;
  font-weight: 400;
  src: url(https://fonts.gstatic.com/s/opensans/v20/mem8YaGs126MiZpBA-UFVZ0e.ttf) format('truetype');
}
body {
  font-size: 16px;
  font-family: 'Open Sans', Arial, sans-serif;
}
* {
  margin: 0;
  padding: 0;
}
* {
  -webkit-box-sizing: border-box;
  -mox-box-sizing: border-box;
  box-sizing: border-box;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: normal;
}
h2 {
  font-size: 20px;
  margin: 15px 0 30px;
  text-align: center;
}
h5 {
  font-size: 12px;
  margin-top: 15px;
}
h5 span {
  color: #c0392b;
  font-weight: bold;
}
input[type='text'] {
  font-size: 15px;
  height: 36px;
  padding: 0 5px;
  text-align: center;
  width: 50px;
}
input[type='submit'] {
  background-color: #2980b9;
  border: 0 none;
  color: #fff;
  padding: 10px;
}
input[type='submit']:hover {
  background-color: #3498db;
  cursor: pointer;
}
.error {
  border: 1px solid #e74c3c;
  font-size: 14px;
  padding: 5px;
  text-align: center;
  -webkit-transition: opacity 0.25s;
  -moz-transition: opacity 0.25s;
  transition: opacity 0.25s;
  opacity: 0;
}
.mainContainer {
  margin: 0 auto;
  width: 600px;
}
.inputFields {
  text-align: center;
  verticle-align: bottom;
}
.inputFields label {
  display: inline-block;
  margin-right: 5px;
}
.inputFields input {
  margin-right: 15px;
}
.inputFields input:last-child {
  margin-right: 0;
}
.resultBlock {
  margin-top: 30px;
  overflow: hidden;
}
.resultBlock p {
  background-color: #34495e;
  color: #fff;
  float: left;
  padding-top: 5px;
  text-align: center;
  width: 25%;
}
.resultBlock p span {
  background-color: #ecf0f1;
  border-top: 1px solid #fff;
  color: #2980b9;
  display: block;
  margin-top: 5px;
  min-height: 35px;
  padding: 5px 0;
}


#article {
  padding: 5% 10% 1%;
}