####フォントカラー変更
css
/* 各ベンダープレフィックスが取れた標準版!!(http://caniuse.com/#search=placeholder-shown) */
:placeholder-shown {
color: red; }
/* Google Chrome, Safari, Opera 15+, Android, iOS */
::-webkit-input-placeholder {
color: red; }
/* Firefox 18- */
:-moz-placeholder {
color: red; opacity: 1; }
/* Firefox 19+ */
::-moz-placeholder {
color: red; opacity: 1; }
/* IE 10+ */
:-ms-input-placeholder {
color: red; }
####スタイルも付けれます
css
::-webkit-input-placeholder {
color: red;
background-color: #ddd;
font-size: 20px;
font-style: italic;
font-weight: 100;
line-height: 1;
letter-spacing: 0.2em;
border: 2px solid #000;
box-shadow: 0 1px 5px blue;
border-radius: 50px;
}
####フォントカラーのsass mixin
scss
/*
* Mixin for placeholder
* @include placeholderColor(#00ff00);
*/
@mixin placeholderColor($color) {
&:placeholder-shown {
color: $color;
}
&::-webkit-input-placeholder {
color:$color;
}
&:-moz-placeholder {
color:$color;
opacity: 1;
}
&::-moz-placeholder {
color:$color;
opacity: 1;
}
&:-ms-input-placeholder {
color:$color;
}
}
####使い方
scss
@include placeholderColor(#00ff00);
####スタイル指定できるsass mixin
scss
@mixin placeholder {
&:placeholder-shown {
@content;
}
&::-webkit-input-placeholder {
@content;
}
&:-moz-placeholder {
opacity: 1;
@content;
}
&::-moz-placeholder {
opacity: 1;
@content;
}
&:-ms-input-placeholder {
@content;
}
}
####使い方
scss
@include placeholder {
// ここに書く...
color: #00ff00;
font-size: 20px;
line-height: 1;
}
####IE9 ~ 6でもplaceholder属性を使えるようにする方法
HTML5 の placeholder 属性を jQuery でクロスブラウザに
HTML5 Placeholder jQuery Plugin@github
####参考
Stackoverflow | Change an input's HTML5 placeholder color with CSS
Internet Explorer Dev Center
MDN Docs
CSS-Tricks