header h2 {
    text-align: center;
}

menu {
    display: flex;
    align-items: center;
}

select {
    font-size: 16px;
    padding: 10px 20px;
    border-radius: 0;
    -webkit-border-radius: 0;
    -moz-border-radius: 0;
    -ms-border-radius: 0;
    -o-border-radius: 0;
}

/* TABLE styles */
#customers {
    font-family: Arial, Helvetica, sans-serif;
    border-collapse: collapse;
    width: 100%;
  }
  
  #customers td, #customers th {
    border: 1px solid #ddd;
    padding: 8px;
  }
  
  #customers tr:nth-child(even){background-color: #f2f2f2;}
  
  #customers tr:hover {background-color: #ddd;}
  
  #customers th {
    padding-top: 12px;
    padding-bottom: 12px;
    text-align: left;
    background-color: #04AA6D;
    color: white;
  }


.warn_light {
width: 20px;
height: 20px;
margin-left: 20px;
background-color: rgb(214, 169, 169);
border-radius: 90px;
-webkit-border-radius: 90px;
-moz-border-radius: 90px;
-ms-border-radius: 90px;
-o-border-radius: 90px;
}

.warn_light._work{
    animation-name: warn_light;
    animation-duration: 1s;
}

@keyframes warn_light{
    0%{
    }
    10%{ 
        background-color: rgb(92, 138, 23);
    }
    90%{
        background-color: rgb(92, 138, 23);
    }
    100%{
        background-color: rgb(214, 169, 169);
    }
    }