auth-buttons.css

/**
 * Button Object
 */

/**
 * 1. Corrects inability to style clickable 'input' types in iOS
 * 2. Remove excess padding in IE6/7
 * 3. IE6/7 inline-block hack for native block-level elements
 */

.btn-auth,
.btn-auth:visited {
    position: relative;
    display: inline-block;
    height: 22px;
    padding: 0 1em;
    border: 1px solid #999;
    border-radius: 2px;
    margin: 0;
    text-align: center;
    text-decoration: none;
    font-size: 14px;
    line-height: 22px;
    white-space: nowrap;
    cursor: pointer;
    color: #222;
    background: #fff;
    -webkit-box-sizing: content-box;
    -moz-box-sizing: content-box;
    box-sizing: content-box;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    /* iOS */
    -webkit-appearance: none; /* 1 */
    /* IE6/7 hacks */
    *overflow: visible;  /* 2 */
    *display: inline; /* 3 */
    *zoom: 1; /* 3 */
}

.btn-auth:hover,
.btn-auth:focus,
.btn-auth:active {
    color: #222;
    text-decoration: none;
}

.btn-auth:before {
    content: "";
    float: left;
    width: 22px;
    height: 22px;
    background: url(auth-icons.png) no-repeat 99px 99px;
}

/**
 * 36px
 */

.btn-auth.large {
    height: 36px;
    line-height: 36px;
    font-size: 20px;
}

.btn-auth.large:before {
    width: 36px;
    height: 36px;
}

/*
 * Remove excess padding and border in FF3+
 */

.btn-auth::-moz-focus-inner {
    border: 0;
    padding: 0;
}


/* Facebook (extends .btn-auth)
   ========================================================================== */

.btn-facebook,
.btn-facebook:visited {
    border-color: #29447e;
    border-bottom-color: #1a356e;
    color: #fff;
    background-color: #5872a7;
    background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#637bad), to(#5872a7));
    background-image: -webkit-linear-gradient(#637bad, #5872a7);
    background-image: -moz-linear-gradient(#637bad, #5872a7);
    background-image: -ms-linear-gradient(#637bad, #5872a7);
    background-image: -o-linear-gradient(#637bad, #5872a7);
    background-image: linear-gradient(#637bad, #5872a7);
    -webkit-box-shadow: inset 0 1px 0 #879ac0;
    box-shadow: inset 0 1px 0 #879ac0;
}

.btn-facebook:hover,
.btn-facebook:focus {
    color: #fff;
    background-color: #3b5998;
}

.btn-facebook:active {
    color: #fff;
    background: #4f6aa3;
    -webkit-box-shadow: inset 0 1px 0 #45619d;
    box-shadow: inset 0 1px 0 #45619d;
}

/*
 * Icon
 */

.btn-facebook:before {
    border-right: 1px solid #465f94;
    margin: 0 1em 0 -1em;
    background-position: 0 0;
}

.btn-facebook.large:before {
    background-position: 0 -22px;
}


/* GitHub
   ========================================================================== */

.btn-github,
.btn-github:visited {
    border-color: #d4d4d4;
    background: #ececec;
    background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#f4f4f4), to(#ececec));
    background-image: -webkit-linear-gradient(#f4f4f4, #ececec);
    background-image: -moz-linear-gradient(#f4f4f4, #ececec);
    background-image: -ms-linear-gradient(#f4f4f4, #ececec);
    background-image: -o-linear-gradient(#f4f4f4, #ececec);
    background-image: linear-gradient(#f4f4f4, #ececec);
}

.btn-github:hover,
.btn-github:focus {
    border-color: #518cc6;
    border-bottom-color: #2a65a0;
    color: #fff;
    background-color: #599bdc;
    background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#599bdc), to(#3072b3));
    background-image: -webkit-linear-gradient(#599bdc, #3072b3);
    background-image: -moz-linear-gradient(#599bdc, #3072b3);
    background-image: -ms-linear-gradient(#599bdc, #3072b3);
    background-image: -o-linear-gradient(#599bdc, #3072b3);
    background-image: linear-gradient(#599bdc, #3072b3);
}

.btn-github:active {
    border-color: #2A65A0;
    border-bottom-color: #518CC6;
    color: #fff;
    background: #3072B3;
    background: -webkit-gradient(linear, 0 0, 0 100%, from(#3072b3), to(#599bdc));
    background: -webkit-linear-gradient(#3072b3, #599bdc);
    background: -moz-linear-gradient(#3072b3, #599bdc);
    background: -ms-linear-gradient(#3072b3, #599bdc);
    background: -o-linear-gradient(#3072b3, #599bdc);
    background: linear-gradient(#3072b3, #599bdc);
}

/*
 * Icon
 */

.btn-github:before {
    margin: 0 0.6em 0 -0.6em;
    background-position: -44px 0;
}

.btn-github:hover:before,
.btn-github:focus:before,
.btn-github:active:before {
    background-position: -66px 0;
}

.btn-github.large:before {
    background-position: -72px -22px;
}

.btn-github.large:hover:before,
.btn-github.large:focus:before,
.btn-github.large:active:before {
    background-position: -108px -22px;
}


/* Google
   ========================================================================== */

.btn-google,
.btn-google:visited {
    border-color: #3079ed;
    color: #fff;
    background: #4787ed;
    background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#4d90fe), to(#4787ed));
    background-image: -webkit-linear-gradient(#4d90fe, #4787ed);
    background-image: -moz-linear-gradient(#4d90fe, #4787ed);
    background-image: -ms-linear-gradient(#4d90fe, #4787ed);
    background-image: -o-linear-gradient(#4d90fe, #4787ed);
    background-image: linear-gradient(#4d90fe, #4787ed);
}

.btn-google:hover,
.btn-google:focus,
.btn-google:active {
    color: #fff;
    background-color: #357ae8;
    background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#4d90fe), to(#357ae8));
    background-image: -webkit-linear-gradient(#4d90fe, #357ae8);
    background-image: -moz-linear-gradient(#4d90fe, #357ae8);
    background-image: -ms-linear-gradient(#4d90fe, #357ae8);
    background-image: -o-linear-gradient(#4d90fe, #357ae8);
    background-image: linear-gradient(#4d90fe, #357ae8);
}

.btn-google:active {
    -webkit-box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.3);
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.3);
}

/*
 * Icon
 */

.btn-google:before {
    margin: 0 1em 0 -1em;
    background-position: -88px 0;
    background-color: #e6e6e6;
}

.btn-google.large:before {
    background-position: -144px -22px;
}


/* Open ID
   ========================================================================== */

.btn-openid:hover,
.btn-openid:focus {
    border-color: #777;
    background: #fcfcfc;
}

.btn-openid:active {
    background: #f5f5f5;
}

/*
 * Icon
 */

.btn-openid:before {
    margin: 0 0.6em 0 -0.6em;
    background-position: -154px 0;
}

.btn-openid.large:before {
    background-position: -252px -22px;
}


/* Twitter
   ========================================================================== */

.btn-twitter,
.btn-twitter:visited {
    border-color: #a6cde6;
    color: #327695;
    background: #cfe4f0;
    /* css3 */
    background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#f1f5f7), to(rgba(255, 255, 255, 0)));
    background-image: -webkit-linear-gradient(#f1f5f7, rgba(255, 255, 255, 0));
    background-image: -moz-linear-gradient(#f1f5f7, rgba(255, 255, 255, 0));
    background-image: -ms-linear-gradient(#f1f5f7, rgba(255, 255, 255, 0));
    background-image: -o-linear-gradient(#f1f5f7, rgba(255, 255, 255, 0));
    background-image: linear-gradient(#f1f5f7, rgba(255, 255, 255, 0));
    -webkit-box-shadow: inset 0 1px 0 #fff;
    box-shadow: inset 0 1px 0 #fff;
}

.btn-twitter:hover,
.btn-twitter:focus,
.btn-twitter:active {
    color: #327695;
    border-color: #8dc2e4;
    background-color: #cadde9;
}

.btn-twitter:active {
    background: #cadde9;
    -webkit-box-shadow: inset 0 1px 0 #bbd6e7;
    box-shadow: inset 0 1px 0 #bbd6e7;
}

/*
 * Icon
 */

.btn-twitter:before {
    margin: 0 0.6em 0 -0.6em;
    background-position: -22px 0;
}

.btn-twitter.large:before {
    background-position: -36px -22px;
}


/* Windows Live ID
   ========================================================================== */

.btn-windows:hover,
.btn-windows:focus {
    border-color: #777;
    background: #fcfcfc;
}

.btn-windows:active {
    background: #f5f5f5;
}

/*
 * Icon
 */

.btn-windows:before {
    margin: 0 0.6em 0 -0.6em;
    background-position: -110px 0;
}

.btn-windows.large:before {
    background-position: -180px -22px;
}


/* Yahoo!
   ========================================================================== */

.btn-yahoo,
.btn-yahoo:visited {
    border-color: #ffb305;
    background: #ffc426;
    background-image: -webkit-gradient(linear, 0 0, 0 100%, from(rgba(255, 255, 255, 0.5)), to(rgba(255, 255, 255, 0)));
    background-image: -webkit-linear-gradient(rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0));
    background-image: -moz-linear-gradient(rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0));
    background-image: -ms-linear-gradient(rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0));
    background-image: -o-linear-gradient(rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0));
    background-image: linear-gradient(rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0));
}

.btn-yahoo:hover,
.btn-yahoo:focus {
    background-color: #fabf20;
}

.btn-yahoo:active {
    border-color: #f09700;
    background-image: none;
    -webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.3);
    box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.3);
}

/*
 * Icon
 */

.btn-yahoo:before {
    margin: 0 0.6em 0 -0.6em;
    background-position: -132px 0;
}

.btn-yahoo.large:before {
    background-position: -216px -22px;
}