.body {
  font-family: 'Courier New', monospace; 
}

.page-title {
  font-size: 29px;
  text-align: center;
  margin-top: 20px;
}

.container {
  box-sizing: border-box;
  max-width: 960px;
  margin: 0 auto;
}

hr {
  border: 3px dashed;
}

pre {
  text-align: center;
  font-size: calc(6px + 0.2vw);
  overflow-x: auto;
}

.box-list {
  box-sizing: border-box;
  font-size: 0;
}

.year-post {
  box-sizing: border-box;
  margin: 0 5px 10px;
  display: inline-block;
  text-align: center;
  width: 70px;
  font-size: 25px;
  line-height: 42px;
  border: 2px dashed #000;
}

a {
  text-underline-offset: 8px;
}

@media only screen and (max-width: 768px) {
  body {
    background-color: #e0e0e0;
  }

  .container {
    background-color: #fff;
    border: 1px solid #f0f0f2;
    padding: 10px;
  }
}