Under WebKit and Firefox, the text in a input
\'s placeholder
sticks around on focus
—it doesn\'t disappear until input.val
There is no good way to make placeholder stay on field focus in IE 10+ but if you are trying to replace labels with placeholders then you should take a look at this.
http://mozmonkey.com/2014/02/css-only-placeholders-field-labels-i-e-float-labels/
It is way to combine placeholders and label to improve user experience.