.diary-main-cards-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 30px;
}

.diary-main-card {
  display: flex;
  flex-wrap: wrap;
  max-width: 400px;
  max-height: 600px;
  gap: 15px;
  border: 1px solid black;
  border-radius: 20px;
  margin: 20px;
}

.diary-main-card img {
  padding: 10px;
  border-radius: 20px;
  object-fit: contain;
  filter: grayscale(100%);
}

.diary-main-card h3 {
  margin-left: 10px;
}

.diary-main-card p {
  margin: 10px;
}

.diary-main-card a {
  margin-left: 10px;
  margin-bottom: 5px;
  font-style: italic;
}

.nav-main {
  display: flex;
  justify-content: center;
  border-bottom: 1px solid black;
  border-top: 1px solid black;
  padding: 10px;
}

.nav-main ul {
  display: flex;
  gap: 20px;
}

.diary-header {
  display: flex;
  justify-content: center;
  align-items: baseline;
  position: relative;
}

.diary-header time {
  position: absolute;
  top: 50%;
  right: 0%;
}

.main-h1 {
  text-align: center;
  color: black;
  letter-spacing: 5px;
  text-decoration: solid underline;
}

#nav-li-hamburger a:hover {
  color: red;
  font-size: 23px;
  text-decoration: none;
}

.secondary-h1 {
  text-align: center;
  color: black;
  letter-spacing: 5px;
  text-decoration: solid underline;
  margin-bottom: 10px;
  margin-top: 30px;
}

#left-content ul {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
  margin-left: 10px;
}

#left-content li {
  border-bottom: 1px solid black;
  text-align: left;
  margin-left: 5px;
  width: 100%;  
  padding-bottom: 10px;  
}

#left-content a {
  display: block;
  width: 100%;
}

#right-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
}
.advertising-card{
   margin: 20px;
}
.advertising-card img {
  border-radius: 20px;
  object-fit: contain;
}

.advertising-card p {
  margin-top: 5px;
  margin-bottom: 5px;
}

.advertising-card a {
  color: blue;
  text-decoration: underline;
}
.advertising-card a:visited {
  color: purple;
}

.advertising-card a:active {
  color: red;
}