* {
  margin: 0;
  padding: 0;
}

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

  body {
    font-family: Arial, sans-serif;
    background: linear-gradient(black,rgb(61, 0, 61)); 
    background-attachment: fixed;
    background-size: cover;
    display: flex;
    flex-direction: column;
    height: 100vh;
    margin: 0;
  }
  
  .background {
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  -o-object-fit: cover;
     object-fit: cover;
  width: 100%;
  height: 100%;

}
.sidebar {
  height: 100%;
  width: 60px; 
  position: fixed;
  top: 0;
  left: 0;
  background-color: #333;
  padding-top: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.sidebar a {
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  text-decoration: none;
  font-size: 18px; 
  padding: 5px; 
  border-radius: 50%;
  width: 40px; 
  height: 40px;
  transition: all 0.3s ease;
}

.sidebar a img {
  width: 30px; 
  height: 30px; 
  border-radius: 50%;
  margin-bottom: 3px;
}

.sidebar a:hover {
  background-color: purple;
  color: white;
  padding: 10px; 
  border-radius: 50%;
}