body {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
}

.navbar-margin 
{
    margin-top: 0;
    padding-left: 20px;
    padding-right: 20px;
    background-color: #2980b9;
}

.sec_searchzone {
    padding-top: 100px;
    padding-bottom: 100px;
    background-color: #2980b9;
}

.sec_searchzone h1 {
    margin: 0;
    color: white;
}

.buttons {
    display: flex;
      flex-flow: row;
      justify-content: center;
  }
  
  .search-input {
    width: 60%;
    min-width: 300px;
  }
  

  
  .buttons button {
    margin-left: 1rem;
    margin-right: 1rem;
    margin-bottom: 1rem;
  }
  
  .input-field input[type=search] ~ .mdi-navigation-close, .input-field input[type=search] ~ .material-icons {
    top: 0.5rem !important;
  }
  
  h1 {
  font-family: 'Helvetica Neue', sans-serif;
  font-weight: 100 !important;
  text-align: center;
  }
  
  #search-field {
    padding-top: 20px;
    padding-bottom: 20px;
  }

  .label-icon {
    padding-top: 20px;
  }
  
  .close_search {
    padding-top: 10px;
  } 

  .page-footer 
  {
    background-color: #3498db;
  }

  .add-height {
    height: 350px;
  }

  .sec_intro {
    background-color: #ecf0f1;
  }

  .mt-2 {
    margin-top: 2%;
  }

  .mb-2 {
    margin-bottom: 2%;
  }

  .mt-3 {
    margin-top: 3% !important;
  } 

  .mb-3 {
    margin-bottom: 3% !important;
  }  

  .mt-4 {
    margin-top: 4% !important;
  } 

  .mb-4 {
    margin-bottom: 4% !important;
  }  

  .mb-5 {
    margin-bottom: 5% !important;
  }

  .mt-5 {
    margin-top: 5% !important;
  }

  .btnProductMargin 
  {
    margin-top: 5%;
    text-align: center;
  }
  
  main {
    flex: 1 0 auto;
  }

  .txt-center 
  {
    text-align: center;
  }

  .barcode {
    text-align: center; 
    margin-top: 5%;
  }

  .barcode img {
    border: 1px solid #000;
    padding: 10px;
  }

  .barcode h5 {
    margin: 0;
    background-color: #333;
    color: white;
    width: 307px;
    margin-right: auto;
    margin-left: auto;
  }

  .error {
    color: white;
    background-color: #e74c3c;
    padding: 10px;
    text-align: center;
  }

  .alert .card-content span {
    font-weight: bold;
    font-size: 1.1em;
    margin-right: 4px;
  }
  .alert .card-content .material-icons {
    font-size: 1.5em;
    position: relative;
    top: 5px;
    margin-right: 0.5em;
  }