snackbar alert

+ Chèn CSS
<style>

/* The snackbar - position it at the bottom and in the middle of the screen */
#snackbar {
  visibility: hidden; /* Hidden by default. Visible on click */
  min-width: 250px; /* Set a default minimum width */
  margin-left: -125px; /* Divide value of min-width by 2 */
  background-color: #333; /* Black background color */
  color: #fff; /* White text color */
  text-align: center; /* Centered text */
  border-radius: 2px; /* Rounded borders */
  padding: 16px; /* Padding */
  position: fixed; /* Sit on top of the screen */
  z-index: 1; /* Add a z-index if needed */
  left: 50%; /* Center the snackbar */
  bottom: 30px; /* 30px from the bottom */
}

/* Show the snackbar when clicking on a button (class added with JavaScript) */
#snackbar.show {
  visibility: visible; /* Show the snackbar */
  /* Add animation: Take 0.5 seconds to fade in and out the snackbar.
  However, delay the fade out process for 2.5 seconds */
  -webkit-animation: fadein 0.5s, fadeout 0.5s 2.5s;
  animation: fadein 0.5s, fadeout 0.5s 2.5s;
}

/* Animations to fade the snackbar in and out */
@-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;}
}


/* End The snackbar
</style>

** Gợi ý: nếu ngôn ngữ iif có thể chèn tại 
      <link href="/themes/lib_cm/snackbar.css" rel="stylesheet" type="text/css" />


+ Chèn SCRIPT

<script>
function alert_bottom(str) {
  // Get the snackbar DIV
  var x = document.getElementById("snackbar");
 
x.innerHTML=str; 
  // Add the "show" class to DIV
  x.className = "show";

  // After 3 seconds, remove the show class from DIV
  setTimeout(function(){ x.className = x.className.replace("show", ""); }, 3000);
}
</script>

+ Chèn HTML

<div id="snackbar"></div>
 

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