<div class="form_container">
<form id="myform" onsubmit="return handle_form_submission()">
<input type="text" name='name' id='name' placeholder='Name'/>
  <button type='submit'>Post it</button>
</form>
</div>
.form_container
{
  width:450px;
  height:100px;
  display:inline-block;
  margin:20px 20px;
  padding:10px;
  
}

.form_container input[type='text'],
.form_container button
{
  padding:8px;
  font-size:1.5em;
}
function handle_form_submission()
{
  alert('Submit button pressed');
  return false; //do not submit the form
}

External CSS

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External JavaScript

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