HTML - Keep placeholder when user types

Question

I have an input like this:

When I type something in the input the placeholder t

Answer 1

Hard to think of a good usecase for such a behaviour, as it is blocking some of the users input.

An easy way would be to use input::after but this is not supported by any browser right now (thanks @JukkaK.Korpela).

But you can use a wrapper element and a data attribute, as follows:

With this css:

.placeholder
{
    position: relative;
}

.placeholder::after
{
    position: absolute;
    left: 5px;
    top: 3px;
    content: attr(data-placeholder);
    pointer-events: none;
    opacity: 0.6;
}

Resulting in:

Click here for jsFiddle demo.

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Since you will have to do a lot of tweaking to make this look good, you may also consider using the wrapping

element as a input "look alike":

CSS:

.editable
{
    position: relative;
    border: 1px solid gray;
    padding: 3px;
    background-color: white;
    box-shadow: rgba(0,0,0,0.4) 2px 2px 2px inset;
}

.editable > input
{
    position: relative;
    z-index: 1;
    border: none;
    background-color: transparent;
    box-shadow: none;
    width: 100%;
}

.editable::after
{
    position: absolute;
    left: 4px;
    top: 5px;
    content: attr(data-placeholder);
    pointer-events: none;
    opacity: 0.5;
    z-index: 1;
}

Click here for the Demo 3. (with mocked )

Click here for the Demo 2. (with contenteditable)

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