* {
  box-sizing: border-box;
}

a {
  text-decoration: none;
}

img {
  cursor: pointer;
}

button {
  background-color: crimson;
  color: white;
  font-size: 15px;
  padding: 8px;
  border-radius: 5px;
  border: none;
  outline: none;
}

button:hover {
  background-color: rgb(20, 220, 57);
  cursor: pointer;
}

::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  box-shadow: inset 0 0 8px grey;
  border-radius: 2px;
}

::-webkit-scrollbar-thumb {
  background-image: linear-gradient(
    to bottom,
    rgba(255, 0, 0, 0.55),
    rgba(0, 128, 0, 0.55),
    rgba(0, 0, 255, 0.55)
  );
  border-radius: 2px;
}

::-webkit-scrollbar-thumb:hover {
  background-image: linear-gradient(to bottom, red, green, blue);
}

html {
  height: 100%;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

body {font-family: Verdana, sans-serif;
    background-image: url('images/background.png');
    background-position: center;
    background-size: cover;
    background-attachment: fixed;
    margin: 0; 
    height: 100%;
    overflow-x: hidden;
}

#logo {
  width: 100%;
  max-width: 200px;
  height: auto;
  margin: 0 auto;
  margin-top: 20px;
  display: block;
}

#intro {
  width: 100%;
  display: block;
  margin: 15px auto;
  max-width: 900px;
  padding: 10px;
  font-family: 'Courier New', Courier, monospace;
  border: 2px ridge crimson;
  border-radius: 5px;
  background-color: aliceblue;
  color: #232121;
  text-align: center;
}

#container {
  width: 100%;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 20px;
}

.content {
  width: 100%;
  max-width: 350px;
  border: 2px ridge blue;
  border-radius: 10px;
  box-sizing: border-box;
}

.content:hover {
  cursor: pointer;
  border: 2px ridge crimson;
}

.content img {
  display: block;
  border-radius: 8px;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.desc {
  display: block;
  margin: 0;
  width: 100%;
  padding: 10px 0;
  background-color: #232121;
  color: white;
  text-align: center;
  font-size: 15px;
  font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
}

#issue {
  width: 100%;
  margin: 0 auto;
  margin-top: 20px;
  padding: 8px;
  border: 2px solid crimson;
  border-radius: 5px;
  max-width: 250px;
  background-color: #232121;
  color: white;
  font-size: 13px;
  text-align: center;
  margin-bottom: 20px;
}

#footer {
  display: block;
  margin: 0;
  padding: 0;
  width: 100%;
  height: 50px;
  line-height: 50px;
  text-align: center;
  background-color: #232121;
  color: white;
  font-size: 15px;
}

@media screen and (max-width: 768px) {
  #intro {
    max-width: 500px;
  }
  .content {
    max-width: 300px;
  }
}

@media screen and (max-width: 480px) {
  body {
    overflow-x: hidden;
  }
  #logo {
    max-width: 100px;
  }
  #intro {
    max-width: 300px;
    font-size: 15px;
  }
  .content {
    max-width: 150px;
  }
}