body {
  margin: 0;
  font-family: Georgia, 'Times New Roman', serif;
  background-color: #4a0080;
  background-image: url('checker-bg.png');
  background-size: cover;
  background-attachment: fixed;
  background-repeat: no-repeat;
  line-height: 1.7;
  position: relative;
}

#hammer {
  text-align: center;
  padding: 25px 0 10px 0;
  position: relative;
  z-index: 1;
}

#hammer img {
  max-width: 100%;
  height: auto;
}

#content {
  background-color: #ffff33;
  color: #000000;
  max-width: 1000px;
  margin: 20px auto;
  padding: 30px;
  box-sizing: border-box;
  position: relative;
  z-index: 1;
}

h1 {
  font-family: Georgia, 'Times New Roman', serif;
  text-align: center;
  color: #990099;
  margin-bottom: 10px;
  font-size: 1.8em;
  letter-spacing: 0.03em;
}

h2 {
  font-family: Georgia, 'Times New Roman', serif;
  text-align: center;
  margin-top: 25px;
  margin-bottom: 15px;
  font-size: 1.3em;
  color: #4a0080;
}

h3 {
  font-family: Georgia, 'Times New Roman', serif;
  margin-top: 20px;
  color: #4a0080;
  font-size: 1.1em;
}

p {
  margin-bottom: 18px;
  font-size: 1em;
}

#content img {
  display: block;
  margin: 25px auto;
  max-width: 100%;
  height: auto;
}

a {
  font-weight: bold;
  text-decoration: none;
  color: #000000;
}

a:hover {
  background-color: #990099;
  color: #ffff33;
  padding: 2px 4px;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 25px;
}

th {
  background: #ffff33;
  color: #990099;
  padding: 8px;
  text-align: left;
  border: 1px solid #990099;
  font-family: Georgia, 'Times New Roman', serif;
}

td {
  background-color: #ffffff;
  border: 1px solid #990099;
  padding: 8px;
}

#navigation {
  text-align: center;
  padding: 20px 0;
  position: relative;
  z-index: 1;
}

#navigation ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

#navigation li {
  display: inline-block;
  margin: 8px 12px;
}

#navigation a {
  color: #ffff33;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.05em;
  letter-spacing: 0.02em;
}

#navigation a:hover {
  background-color: #ffff33;
  color: #990099;
  padding: 4px 6px;
}

#blackblock {
  background-color: #990099;
  color: #ffff33;
  text-align: center;
  padding: 15px;
  margin-top: 25px;
  font-size: 0.9em;
  font-family: Georgia, 'Times New Roman', serif;
  position: relative;
  z-index: 1;
}

@media (max-width: 768px) {
  #navigation li {
    display: block;
    margin: 10px 0;
  }
  #content {
    padding: 20px;
  }
  h1 {
    font-size: 1.4em;
  }
  h2 {
    font-size: 1.1em;
  }
}