Change date input triangle to a calendar icon

Question

Right now I'm focusing on getting the input[type="date"] in Google Chrome to display a calendar icon (.png) instead of the downwards triangle that it uses by default. I've tried to do something with styling the Shadow elements inside the input, but that requires I shift around all the other elements and since those are using flexbox, it doesn't seem very simple. I'm looking to also have the calendar icon be shown all the time, but I haven't figured out a way to do that yet.

Answer 1

The code below works for me

input[type="date"]::-webkit-calendar-picker-indicator {
    color: rgba(0, 0, 0, 0);
    opacity: 1;
    display: block;
    background: url(https://mywildalberta.ca/images/GFX-MWA-Parks-Reservations.png) no-repeat;
    width: 20px;
    height: 20px;
    border-width: thin;
}

<input type="date" />

Answer 2

A more cross browser alternative would be to position a calendar icon over top of the triangle calendar picker indicator and then set the calendar icon to pointer-events: none which will cause all click events to be passed through to the triangle calendar picker indicator underneath. I'm not entirely sure how consistent the position of the calendar picker indicator is in different browsers but it should be pretty similar. See the example below.

.sd-container {
  position: relative;
  float: left;
}

.sd {
  padding: 5px 10px;
  height: 30px;
  width: 150px;
}

.open-button {
  position: absolute;
  top: 10px;
  right: 11px;
  width: 25px;
  height: 25px;
  background: #fff;
  pointer-events: none;
}

.open-button button {
  border: none;
  background: transparent;
}

<form>
  <div class="sd-container">
    <input class="sd" type="date" name="selected_date" />
    <span class="open-button">
      <button type="button">📅</button>
    </span>
  </div>
</form>

Also it is possible to change some of the appearance of the date input field (but not the calendar date picker) as it styles similar to a text input field. In addition there are a number of WebKit CSS properties that are explained here Are there any style options for the HTML5 Date picker?

Answer 3

@Aweary has the best example, but Chrome 59 doesn't like using ::after on ::-webkit-calendar-picker-indicator. So here's an adjustment I made using FontAwesome icons that achieves the same goal.

input[type="date"] {
  position: relative;
  padding: 10px;
}

input[type="date"]::-webkit-calendar-picker-indicator {
  color: transparent;
  background: none;
  z-index: 1;
}

input[type="date"]:before {
  color: transparent;
  background: none;
  display: block;
  font-family: 'FontAwesome';
  content: '\f073';
  /* This is the calendar icon in FontAwesome */
  width: 15px;
  height: 20px;
  position: absolute;
  top: 12px;
  right: 6px;
  color: #999;
}

<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet" />

<input type="date">