Edit in JSFiddle

    $('.use-guide').focus(function() {
      id = $(this).attr('id');
      $('.guide-tip[rel='+id+']').fadeIn();
    }).blur(function() {
      $('.guide-tip[rel='+id+']').fadeOut();
    });

 article, aside, figure, footer, header, hgroup, 
  menu, nav, section { display: block; }

  body {
    background:#dfdfdf;
    color:#666;
    font:14px/24px sans-serif;
  }

  input[type="text"] {
    width:400px;
    padding:10px;
    border-radius:5px; /*optional*/
    color:#666;
    font-size:.875em;
    outline:none;
    background:#f6f6f6;

    border-width: 1px;
    border-style: solid;
    border-color: rgba(0,0,0,.2);
  }

  .input-line {
    position:relative;
  }

  .guide-tip {
    display:none;
    bottom:-90px;
    z-index:2000;
    position:absolute;
    width:390px;
    padding:10px 15px;
    margin:10px 0;
    background:#eaeaea;
    border-width: 1px;
    border-style: solid;
    border-color: rgba(0,0,0,.1);
    color:#999;
    font-size:.875em; 
  }

  .guide-tip .arrow {
    position:absolute;
    top:-8px;
    left:15px;
    z-index:1000;
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 8px solid #eaeaea;
  }

  .guide-tip .arrow.border {
    top:-9px; left:14px;
    border-left: 9px solid transparent;
    border-right: 9px solid transparent;
    border-bottom: 9px solid #ccc;
  }

  <p><strong>Guide - Tip</strong></p>
  <form>
    <div class="input-line">
    <div class="guide-tip" rel="title">
      <div class="arrow border"></div>
      <div class="arrow"></div>
      <em>Please follow the instruction :</em>
      <br>
      <strong>Don't use bad word!</strong>
    </div>
    <input type="text" name="title" id="title" placeholder="input something ..." class="use-guide">
    </div>

    <p>
    Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
    tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
    quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
    consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse
    cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non
    proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
    </p>
  </form>