body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f7f7f7;
}

header {
  background-color: #333;
  color: #fff;
  padding: 20px 0;
  text-align: center;
}

h1 {
  margin: 0;
}

main {
  padding: 20px;
}

.container {
  max-width: 600px;
  margin: 0 auto;
  background-color: #fff;
  border-radius: 5px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  padding: 20px;
  margin-bottom: 20px;
  position: relative;
}

input[type="text"] {
  width: calc(100% - 80px);
  padding: 10px;
  margin-bottom: 10px;
}

button {
  padding: 10px 20px;
  background-color: #333;
  color: #fff;
  border: none;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

button:hover {
  background-color: #555;
}

#entries {
  margin-top: 20px;
}

#entries {
  max-height: 200px;
  overflow-y: auto;
}

#prevButton,
#nextButton {
  /* Add gap between buttons */
  margin: 0 5px;
}

#snackbar {
  visibility: hidden;
  min-width: 250px;
  background-color: #333;
  color: #fff;
  text-align: center;
  border-radius: 2px;
  padding: 16px;
  position: fixed;
  z-index: 1;
  top: 20px; 
  right: 20px; 
  font-size: 17px;
}

#snackbar.show {
  visibility: visible;
  -webkit-animation: fadein 0.5s, fadeout 0.5s 2.5s;
  animation: fadein 0.5s, fadeout 0.5s 2.5s;
}

@-webkit-keyframes fadein {
  from {bottom: 0; opacity: 0;}
  to {bottom: 30px; opacity: 1;}
}

@keyframes fadein {
  from {bottom: 0; opacity: 0;}
  to {bottom: 30px; opacity: 1;}
}

@-webkit-keyframes fadeout {
  from {bottom: 30px; opacity: 1;}
  to {bottom: 0; opacity: 0;}
}

@keyframes fadeout {
  from {bottom: 30px; opacity: 1;}
  to {bottom: 0; opacity: 0;}
}

footer {
  background-color: #333;
  color: #fff;
  text-align: center;
  padding: 10px 0;
}