Use CSS to modify the HTML5 input placeholder color (reproduced), html5placeholder

Use CSS to modify the HTML5 input placeholder color (reproduced), html5placeholder

Problem: Chrome supports the input = [type = text] placeholder text attribute, but the following CSS styles do not work:

input[placeholder], [placeholder], *[placeholder] {   color:red !important;}

HTML code:

<input type="text" placeholder="Value" />

The running result value is still gray, and Color: red does not work. Is there any way to modify the color of placeholder text? I installed the jQuery placeholder text plug-in my browser, but it is still useless.

Answer:

There are three implementation methods: pseudo-elements, pseudo-classes, and Notihing.

WebKit and Blink (Safari, Google Chrome, Opera15 +) use pseudo elements.

::-webkit-input-placeholder

Mozilla Firefox 4-18 uses pseudo classes:

:-moz-placeholder

Mozilla Firefox 19 + uses pseudo elements:

::-moz-placeholder

IE10 uses pseudo classes:

:-ms-input-placeholder

CSS Selector

Because the CSS selectors of Each browser are different, you need to set them separately for each browser.

::-webkit-input-placeholder { /* WebKit browsers */    color:    #999;}:-moz-placeholder { /* Mozilla Firefox 4 to 18 */    color:    #999;}::-moz-placeholder { /* Mozilla Firefox 19+ */    color:    #999;}:-ms-input-placeholder { /* Internet Explorer 10+ */    color:    #999;}

The code of the textareas (text box extensible) style is as follows:

input::-webkit-input-placeholder, textarea::-webkit-input-placeholder {  color: #636363;}input:-moz-placeholder, textarea:-moz-placeholder {  color: #636363;}

The font color of input and Textarea is red. All styles are determined by different selectors. Do not package them for overall processing, because one of them has a problem and the others will become invalid.

*::-webkit-input-placeholder {    color: red;} *:-moz-placeholder {    color: red;} *:-ms-input-placeholder {    /* IE10+ */    color: red;}

In Firefox and IE, the normal input text color overwrites the placeholder color:

::-webkit-input-placeholder {     color: red; text-overflow: ellipsis; }:-moz-placeholder {     color: #acacac !important; text-overflow: ellipsis; }::-moz-placeholder {     color: #acacac !important; text-overflow: ellipsis; } /* for the future */:-ms-input-placeholder {     color: #acacac !important; text-overflow: ellipsis; }

There is also a good way:

input::-webkit-input-placeholder, textarea::-webkit-input-placeholder {     color:    #666;}input:-moz-placeholder, textarea:-moz-placeholder {     color:    #666;}input::-moz-placeholder, textarea::-moz-placeholder {     color:    #666;}input:-ms-input-placeholder, textarea:-ms-input-placeholder {     color:    #666;}

The last one is from the Internet:

$('[placeholder]').focus(function() {        var input = $(this);        if (input.val() == input.attr('placeholder')) {            input.val('');            input.removeClass('placeholder');        }    }).blur(function() {        var input = $(this);        if (input.val() == '' || input.val() == input.attr('placeholder')) {            input.addClass('placeholder');            input.val(input.attr('placeholder'));        }    }).blur();    $('[placeholder]').parents('form').submit(function() {        $(this).find('[placeholder]').each(function() {            var input = $(this);            if (input.val() == input.attr('placeholder')) {                input.val('');            }        })    });

The rule for calling this code is to first load Javascript and then modify the placeholder attributes with CSS.

form .placeholder {   color: #222;   font-size: 25px;   /* etc */}

In addition, CSS and placeholder text are not used to achieve the same effect.

<input type="text" value="placeholder text" onfocus="this.style.color='#000'; this.value='';" style="color: #f00;"/>

Source: http://html5.9tech.cn/news/2013/1118/38691.html