How to Style Form Drop Down Lists

How do I style form drop down lists?

As mentioned above it's pretty much impossible to do using straight html, I have had good results with jQuery Combobox though.

How do I style a select dropdown with only CSS?

Here are three solutions:

Solution #1 - appearance: none - with Internet Explorer 10 - 11 workaround (Demo)

--

To hide the default arrow set appearance: none on the select element, then add your own custom arrow with background-image

select {
   -webkit-appearance: none;
   -moz-appearance: none;
   appearance: none;       /* Remove default arrow */
   background-image: url(...);   /* Add custom arrow */
}

Browser Support:

appearance: none has very good browser support (caniuse) - except for Internet Explorer.

We can improve this technique and add support for Internet Explorer 10 and Internet Explorer 11 by adding

select::-ms-expand {
    display: none; /* Hide the default arrow in Internet Explorer 10 and Internet Explorer 11 */
}

If Internet Explorer 9 is a concern, we have no way of removing the default arrow (which would mean that we would now have two arrows), but, we could use a funky Internet Explorer 9 selector.

To at least undo our custom arrow - leaving the default select arrow intact.

/* Target Internet Explorer 9 to undo the custom arrow */
@media screen and (min-width:0\0) {
    select {
        background-image:none\9;
        padding: 5px\9;
    }
}

All together:

select {
  margin: 50px;
  width: 150px;
  padding: 5px 35px 5px 5px;
  font-size: 16px;
  border: 1px solid #CCC;
  height: 34px;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background: url(https://stackoverflow.com/favicon.ico) 96% / 15% no-repeat #EEE;
}

/* CAUTION: Internet Explorer hackery ahead */

select::-ms-expand {
    display: none; /* Remove default arrow in Internet Explorer 10 and 11 */
}

/* Target Internet Explorer 9 to undo the custom arrow */
@media screen and (min-width:0\0) {
    select {
        background: none\9;
        padding: 5px\9;
    }
}

<select>
  <option>Apples</option>
  <option selected>Pineapples</option>
  <option>Chocklate</option>
  <option>Pancakes</option>
</select>

How to style drop down list?

Check this out - http://bavotasan.com/2011/style-select-box-using-only-css/

html

<div class="styled-select">
   <select>
      <option>Here is the first option</option>
      <option>The second option</option>
   </select>
</div>

css

.styled-select select {
   background: transparent;
   width: 268px;
   padding: 5px;
   font-size: 16px;
   line-height: 1;
   border: 0;
   border-radius: 0;
   height: 34px;
   -webkit-appearance: none;
}

For more elaborate styling you need to use javascript - like this http://tympanus.net/codrops/2012/10/04/custom-drop-down-list-styling/

How do I style child elements of a drop down list in a Symfony form

You can use the choice_attr option:

    ->add('qualifications', EntityType::class, [
                'class' => Tag::class,
                'multiple' => true,
                'expanded' => true,
                'required' => false,
                'placeholder' => 'Select...',
                'choices' => $this->tagsService->getTagsQualificationLevels(),
                'attr' => [
                    'class' => 'form-control-ajax-submit-on-change w-20',
                ],
                'choice_attr' => function($choiceValue, $key, $value) {
                    return ['class' => 'my_custom_choice_class'];
                },
            ])

How to correctly customize the drop-down menu created by ul-li tags?

Change your css a bit like

OLD CSS

#select-ul {
  display: block;
  cursor: pointer;
  border: 0.1px solid rgba(0, 0, 0, .1);
  border-top: 0;
  background-color: white;
  padding: 12px;
  height: 300px;
  overflow: auto;
  float: none;
  overflow-y:scroll;
}

NEW CSS

#select-ul {
  z-index: 1;
  display: none;
  position: absolute;
  width: 100%; /* you can change but must give width */
  max-height: 300px;
  cursor: pointer;
  border: 1px solid #e5e5e5; /* 0.1px doesn't work */
  border-top: 0;
  padding: 12px;
  background-color: white;
  overflow: hidden scroll;
}

#select-ul.active {
  display: flex;
  flex-direction: column;
}

And a bit JavaScript convert it in vue as you are using it.

const dropdown = document.querySelector('#select-ul');

dropdown.addEventListener('click', () => {
  dropdown.classList.add('active'); // you can also use toggle
});

// additionally 
dropdown.addEventListener('blur', () => {
  dropdown.classList.remove('active');
});

Lemme know if this work! TBH I am not getting what scaling issue you are talking about. *elaborate it some more.

---

Related Topics