问题
This is done automatically for every browser except Chrome.
I\'m guessing I have to specifically target Chrome.
Any solutions?
If not with CSS, then with jQuery?
回答1:
<input
type="text"
placeholder="enter your text"
onfocus="this.placeholder = ''"
onblur="this.placeholder = 'enter your text'" />
回答2:
Edit: All browsers support now
input:focus::placeholder{
color:transparent;
}
Firefox 15 and IE 10+ also supports this now. To expand on Casey Chu's CSS solution:
input:focus::-webkit-input-placeholder { color:transparent; }
input:focus:-moz-placeholder { color:transparent; } /* FF 4-18 */
input:focus::-moz-placeholder { color:transparent; } /* FF 19+ */
input:focus:-ms-input-placeholder { color:transparent; } /* IE 10+ */
回答3:
Here is a CSS-only solution (for now, only works in WebKit):
input:focus::-webkit-input-placeholder {
opacity: 0;
}
回答4:
Pure CSS Solution (no JS required)
Building on @Hexodus and @Casey Chu's answers, here is an updated and cross-browser solution that leverages CSS opacity and transitions to fade the placeholder text out. It works for any element that can use placeholders, including textarea and input tags.
::-webkit-input-placeholder { opacity: 1; -webkit-transition: opacity .5s; transition: opacity .5s; } /* Chrome <=56, Safari < 10 */
:-moz-placeholder { opacity: 1; -moz-transition: opacity .5s; transition: opacity .5s; } /* FF 4-18 */
::-moz-placeholder { opacity: 1; -moz-transition: opacity .5s; transition: opacity .5s; } /* FF 19-51 */
:-ms-input-placeholder { opacity: 1; -ms-transition: opacity .5s; transition: opacity .5s; } /* IE 10+ */
::placeholder { opacity: 1; transition: opacity .5s; } /* Modern Browsers */
*:focus::-webkit-input-placeholder { opacity: 0; } /* Chrome <=56, Safari < 10 */
*:focus:-moz-placeholder { opacity: 0; } /* FF 4-18 */
*:focus::-moz-placeholder { opacity: 0; } /* FF 19-50 */
*:focus:-ms-input-placeholder { opacity: 0; } /* IE 10+ */
*:focus::placeholder { opacity: 0; } /* Modern Browsers */
Edit: Updated to support modern browsers.
回答5:
have you tried placeholder attr?
<input id ="myID" type="text" placeholder="enter your text " />
-EDIT-
I see, try this then:
$(function () {
$('#myId').data('holder', $('#myId').attr('placeholder'));
$('#myId').focusin(function () {
$(this).attr('placeholder', '');
});
$('#myId').focusout(function () {
$(this).attr('placeholder', $(this).data('holder'));
});
});
Test: http://jsfiddle.net/mPLFf/4/
-EDIT-
Actually, since placeholder should be used to describe the value, not the name of the input. I suggest the following alternative
html:
<label class="overlabel">
<span>First Name</span>
<input name="first_name" type="text" />
</label>
javascript:
$('.overlabel').each(function () {
var $this = $(this);
var field = $this.find('[type=text], [type=file], [type=email], [type=password], textarea');
var span = $(this).find('> span');
var onBlur = function () {
if ($.trim(field.val()) == '') {
field.val('');
span.fadeIn(100);
} else {
span.fadeTo(100, 0);
}
};
field.focus(function () {
span.fadeOut(100);
}).blur(onBlur);
onBlur();
});
css:
.overlabel {
border: 0.1em solid;
color: #aaa;
position: relative;
display: inline-block;
vertical-align: middle;
min-height: 2.2em;
}
.overlabel span {
position: absolute;
left: 0;
top: 0;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
}
.overlabel span, .overlabel input {
text-align: left;
font-size: 1em;
line-height: 2em;
padding: 0 0.5em;
margin: 0;
background: transparent;
-webkit-appearance: none; /* prevent ios styling */
border-width: 0;
width: 100%;
outline: 0;
}
Test:
http://jsfiddle.net/kwynwrcf/
回答6:
To augment @casey-chu's and pirate rob's answer, here's a more cross browser compatible way:
/* WebKit browsers */
input:focus::-webkit-input-placeholder { color:transparent; }
/* Mozilla Firefox 4 to 18 */
input:focus:-moz-placeholder { color:transparent; }
/* Mozilla Firefox 19+ */
input:focus::-moz-placeholder { color:transparent; }
/* Internet Explorer 10+ */
input:focus:-ms-input-placeholder { color:transparent; }
回答7:
Toni's answer is good, but I'd rather drop the ID and explicitly use input, that way all inputs with placeholder get the behavior:
<input type="text" placeholder="your text" />
Note that $(function(){ }); is the shorthand for $(document).ready(function(){ });:
$(function(){
$('input').data('holder',$('input').attr('placeholder'));
$('input').focusin(function(){
$(this).attr('placeholder','');
});
$('input').focusout(function(){
$(this).attr('placeholder',$(this).data('holder'));
});
})
Demo.
回答8:
I like to package this up in the name space and run on elements with the "placeholder" attribute...
$("[placeholder]").togglePlaceholder();
$.fn.togglePlaceholder = function() {
return this.each(function() {
$(this)
.data("holder", $(this).attr("placeholder"))
.focusin(function(){
$(this).attr('placeholder','');
})
.focusout(function(){
$(this).attr('placeholder',$(this).data('holder'));
});
});
};
回答9:
Sometimes you need SPECIFICITY to make sure your styles are applied with strongest factor id Thanks for @Rob Fletcher for his great answer, in our company we have used
So please consider adding styles prefixed with the id of the app container
#app input:focus::-webkit-input-placeholder, #app textarea:focus::-webkit-input-placeholder {
color: #FFFFFF;
}
#app input:focus:-moz-placeholder, #app textarea:focus:-moz-placeholder {
color: #FFFFFF;
}回答10:
To further refine Wallace Sidhrée's code sample:
$(function()
{
$('input').focusin(function()
{
input = $(this);
input.data('place-holder-text', input.attr('placeholder'))
input.attr('placeholder', '');
});
$('input').focusout(function()
{
input = $(this);
input.attr('placeholder', input.data('place-holder-text'));
});
})
This ensures that each input stores the correct placeholder text in the data attribute.
See a working example here in jsFiddle.
回答11:
I like the css approach spiced with transitions. On Focus the placeholder fades out ;) Works also for textareas.
Thanks @Casey Chu for the great idea.
textarea::-webkit-input-placeholder, input::-webkit-input-placeholder {
color: #fff;
opacity: 0.4;
transition: opacity 0.5s;
-webkit-transition: opacity 0.5s;
}
textarea:focus::-webkit-input-placeholder, input:focus::-webkit-input-placeholder {
opacity: 0;
}
回答12:
Using SCSS along with http://bourbon.io/, this solution is simple, elegant, and works on all web browsers:
input:focus {
@include placeholder() {
color: transparent;
}
}
Use Bourbon ! It's good for you !
回答13:
With Pure CSS it worked for me. Make it transparent when Entered/Focues in input
input:focus::-webkit-input-placeholder { /* Chrome/Opera/Safari */
color: transparent !important;
}
input:focus::-moz-placeholder { /* Firefox 19+ */
color: transparent !important;
}
input:focus:-ms-input-placeholder { /* IE 10+ */
color: transparent !important;
}
input:focus:-moz-placeholder { /* Firefox 18- */
color: transparent !important;
}
回答14:
This piece of CSS worked for me:
input:focus::-webkit-input-placeholder {
color:transparent;
}
回答15:
For a pure CSS based solution:
input:focus::-webkit-input-placeholder {color:transparent;}
input:focus::-moz-placeholder {color:transparent;}
input:-moz-placeholder {color:transparent;}
Note: Not yet supported by all browser vendors.
Reference: Hide placeholder text on focus with CSS by Ilia Raiskin.
回答16:
HTML:
<input type="text" name="name" placeholder="enter your text" id="myInput" />
jQuery:
$('#myInput').focus(function(){
$(this).attr('placeholder','');
});
$('#myInput').focusout(function(){
$(this).attr('placeholder','enter your text');
});
回答17:
2018 > JQUERY v.3.3 SOLUTION: Working globaly for all input, textarea with placeholder.
$(function(){
$('input, textarea').on('focus', function(){
if($(this).attr('placeholder')){
window.oldph = $(this).attr('placeholder');
$(this).attr('placeholder', ' ');
};
});
$('input, textarea').on('blur', function(){
if($(this).attr('placeholder')){
$(this).attr('placeholder', window.oldph);
};
});
});
回答18:
Demo is here: jsfiddle
Try this :
//auto-hide-placeholder-text-upon-focus
if(!$.browser.webkit){
$("input").each(
function(){
$(this).data('holder',$(this).attr('placeholder'));
$(this).focusin(function(){
$(this).attr('placeholder','');
});
$(this).focusout(function(){
$(this).attr('placeholder',$(this).data('holder'));
});
});
}
回答19:
for input
input:focus::-webkit-input-placeholder { color:transparent; }
input:focus:-moz-placeholder { color:transparent; }
for textarea
textarea:focus::-webkit-input-placeholder { color:transparent; }
textarea:focus:-moz-placeholder { color:transparent; }
回答20:
$("input[placeholder]").focusin(function () {
$(this).data('place-holder-text', $(this).attr('placeholder')).attr('placeholder', '');
})
.focusout(function () {
$(this).attr('placeholder', $(this).data('place-holder-text'));
});
回答21:
$("input[placeholder]").each(function () {
$(this).attr("data-placeholder", this.placeholder);
$(this).bind("focus", function () {
this.placeholder = '';
});
$(this).bind("blur", function () {
this.placeholder = $(this).attr("data-placeholder");
});
});
回答22:
Besides all of above,I have two ideas.
You can add an element that imitates the palceholder.Then using javascript control the element showing and hiding.
But it is so complex,the other one is using the brother's selector of css.Just like this:
.placeholder { position: absolute; font-size: 14px; left: 40px; top: 11px; line-height: 1; pointer-events: none; }
.send-message input:focus + .placeholder { display: none; } 23333,I have a poor English.Hope solve your problem.
回答23:
try this function:
+It Hides The PlaceHolder On Focus And Returns It Back On Blur
+This function depends on the placeholder selector, first it selects the elements with the placeholder attribute, triggers a function on focusing and another one on blurring.
on focus : it adds an attribute "data-text" to the element which gets its value from the placeholder attribute then it removes the value of the placeholder attribute.
on blur : it returns back the placeholder value and removes it from the data-text attribute
<input type="text" placeholder="Username" />
$('[placeholder]').focus(function() {
$(this).attr('data-text', $(this).attr('placeholder'));
$(this).attr('placeholder', '');
}).blur(function() {
$(this).attr('placeholder', $(this).attr('data-text'));
$(this).attr('data-text', '');
});
});
you can follow me very well if you look what's happening behind the scenes by inspecting the input element
回答24:
The same thing i have applied in angular 5.
i created a new string for storing placeholder
newPlaceholder:string;
then i have used focus and blur functions on input box(i am using prime ng autocomplete).
Above placeholder is being set from typescript
Two functions i am using -
/* Event fired on focus to textbox*/
Focus(data) {
this.newPlaceholder = data.target.placeholder;
this.placeholder = '';
}
/* Event fired on mouse out*/
Blur(data) {
this.placeholder = this.newPlaceholder;
}
回答25:
No need to use any CSS or JQuery. You can do it right from the HTML input tag.
For example, In below email box, the placeholder text will disappear after clicking inside and the text will appear again if clicked outside.
<input type="email" placeholder="Type your email here..." onfocus="this.placeholder=''" onblur="this.placeholder='Type your email here...'">
回答26:
/* Webkit */
[placeholder]:focus::-webkit-input-placeholder { opacity: 0; }
/* Firefox < 19 */
[placeholder]:focus:-moz-placeholder { opacity: 0; }
/* Firefox > 19 */
[placeholder]:focus::-moz-placeholder { opacity: 0; }
/* Internet Explorer 10 */
[placeholder]:focus:-ms-input-placeholder { opacity: 0; }
来源：https://stackoverflow.com/questions/9707021/how-do-i-auto-hide-placeholder-text-upon-focus-using-css-or-jquery