body{
    text-align: center;
}
h1{
    border-style: none;
    font-size: 50px;
}

.firstimg_app
{
    width: 100%;
}

#toggleButton {
    background-color: transparent;
    border: none;
    cursor: pointer;
    padding: 5px;
    font-size: 16px;
  }
  
  #details {
    margin-top: 20px;
    border: 1px solid #ddd;
    padding: 10px;
  }
  
  .fixed {
    position: fixed;
    bottom: 0;
    right: 0;
    margin-right: 10px;
    margin-bottom: 10px;
    text-align: center;
    border: 3px solid #326693;
    background-color: white;
    border-radius: 100px;
  }
  #color_setting{
    font-size: 15px;
    width: 80%;
  }
  .center-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

#app-description {
    display: flex;
    align-items: center;
    flex-direction: column;
    text-align: center;

}
#app-description .description{
  margin-top: 50px;
  padding: 20px;
  background-color: #eef6ff;
  border-radius: 10px;
  text-align: left;
  width: 85vw;
  max-width: 1500px;
}
#app-description h2, #app-description h3 {
  color: #2c3e50;
}

#app-description p, #app-description li {
  font-size: 16px;
  line-height: 1.6;
}