问题
Can I have a two line text in an html select option? How?
回答1:
No, browsers don't provide this formatting option.
You could probably fake it with some checkboxes with <label>s, and JS to turn it into a fly out menu.
回答2:
I know this is an older post, but I'm leaving this for whomever else comes looking in the future.
You can't format line breaks into an option; however, you can use the title attibute to give a mouse-over tooltip to give the full info. Use a short descriptor in the option text and give the full skinny in the title.
<option value="1" title="This is my lengthy explanation of what this selection really means, so since you only see 1 on the drop down list you really know that you're opting to elect me as King of Willywarts! Always be sure to read the fine print!">1</option>
回答3:
How about putting the long text in another <option> right below and disabling it? Might be a workaround for someone so posting here.
<select>
<option>My real option text</option>
<option disabled style="font-style:italic"> (...and my really really long option text that is basically a continuation of previous option)</option>
<option disabled style="font-style:italic"> (...and still continuing my previous option)</option>
<option>Another real option text</option>
</select>回答4:
A bit of a hack, but this gives the effect of a multi-line select, puts in a gray bgcolor for your multi line, and if you select any of the gray text, it selects the first of the grouping. Kinda clever I'd say :) The first option also shows how you can put a title tag in for an option as well.
function SelectFirst(SelVal) {
var arrSelVal = SelVal.split(",")
if (arrSelVal.length > 1) {
Valuetoselect = arrSelVal[0];
document.getElementById("select1").value = Valuetoselect;
}
}<select name="select1" id="select1" onchange="SelectFirst(this.value)">
<option value="1" title="this is my long title for the yes option">Yes</option>
<option value="2">No</option>
<option value="2,1" style="background:#eeeeee"> This is my description for the no option</option>
<option value="2,2" style="background:#eeeeee"> This is line 2 for the no option</option>
<option value="3">Maybe</option>
<option value="3,1" style="background:#eeeeee"> This is my description for Maybe option</option>
<option value="3,2" style="background:#eeeeee"> This is line 2 for the Maybe option</option>
<option value="3,3" style="background:#eeeeee"> This is line 3 for the Maybe option</option>
</select>回答5:
HTML Code
<section style="background-color:rgb(237.247.249);">
<h2>Test of select menu (SelectboxIt plugin)</h2>
<select name="select_this" id="testselectset">
<option value="01">Option 1</option>
<option value="02">Option 2</option>
<option value="03">Option 3</option>
<option value="04">Option 4</option>
<option value="05">Option 5</option>
<option value="06">Option 6</option>
<option value="07">Option 7 with a really, really long text line that we shall use in order to test the wrapping of text within an option or optgroup</option>
<option value="08">Option 8</option>
<option value="09">Option 9</option>
<option value="10">Option 10</option>
</select>
</section>
Javascript Code
$(function(){
$("#testselectset").selectBoxIt({
theme: "default",
defaultText: "Make a selection...",
autoWidth: false
});
});
CSS Code
.selectboxit-container .selectboxit, .selectboxit-container .selectboxit-options {
width: 400px; /* Width of the dropdown button */
border-radius:0;
max-height:100px;
}
.selectboxit-options .selectboxit-option .selectboxit-option-anchor {
white-space: normal;
min-height: 30px;
height: auto;
}
and you have to add some Jquery Library select Box Jquery CSS
Jquery Ui Min JS
SelectBox Js
Please check this link JsFiddle Link
回答6:
Does not work fully (the hr line part) on all browsers, but here is the solution:
<select name="selector">
<option value="1">Option 1</option>
<option value="2">Option 2</option>
<option value="3">Option 3</option>
<option disabled><hr></option>
<option value="4">Option 4</option>
<option value="5">Option 5</option>
<option value="6">Option 6</option>
</select>回答7:
Instead, maybe try replacing the select with markup, e.g.
// Wrap any selects that should be replaced
$('select.replace').wrap('<div class="select-replacement-wrapper"></div>');
// Replace placeholder text with select's initial value
$('.select-replacement-wrapper').each(function() {
$(this).prepend('<a>' + $('select option:selected', this).text() + '</a>');
});
// Update placeholder text with updated select value
$('select.replace').change(function(event) {
$(this).siblings('a').text( $('option:selected', this).text() );
});/* Position relative, so that we can overlay the hidden select */
.select-replacement-wrapper {
position: relative;
border: 3px solid red; /* to show area */
width: 33%;
margin: 0 auto;
}
/* Only shows if JS is enabled */
.select-replacement-wrapper a {
/* display: none; */
/* Notice that we've centered this text -
you can do whatever you want, mulitple lines wrap, etc,
since this is not a select element' */
text-align: center;
display: block;
border: 1px solid blue;
}
select.replace {
position: absolute;
width: 100%;
height: 100%;
top: 0;
border: 1px solid green;
opacity: 0;
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<select id="dropdown" class="replace">
<option value="First">First</option>
<option value="Second" selected>Second, and this is a long line, just to show wrapping</option>
<option value="Third">Third</option>
</select>回答8:
yes, by using css styles white-space: pre-wrap; in the .dropdown class of the bootstrap by overriding it. Earlier it is white-space: nowrap; so it makes the dropdown wrapped into one line. pre-wrap makes it as according to the width.
回答9:
If you just want a line break in the dropdown list use this:
<option label="" value="" disabled=""> </option>
来源：https://stackoverflow.com/questions/2864238/line-break-in-html-select-option