.elevator-button button {
    border: none;
    display: block;
}

.elevator-button a {
    text-decoration: none;
    display: block;
}



/* Metal ------------------------- */

.metal {
    position: relative;
    margin: 40px auto;
    outline: none;

    font: bold 6em/2em "Helvetica Neue", Arial, Helvetica, Geneva, sans-serif;
    text-align: center;
    color: hsla(0, 0%, 20%, 1);
    text-shadow: hsla(0, 0%, 40%, .5) 0 -1px 0, hsla(0, 0%, 100%, .6) 0 2px 1px;

    background-color: hsl(0, 0%, 90%);
    box-shadow: inset hsla(0, 0%, 15%, 1) 0 0px 0px 4px,
        /* border */
        inset hsla(0, 0%, 15%, .8) 0 -1px 5px 4px,
        /* soft SD */
        inset hsla(0, 0%, 0%, .25) 0 -1px 0px 7px,
        /* bottom SD */
        inset hsla(0, 0%, 100%, .7) 0 2px 1px 7px,
        /* top HL */

        hsla(0, 0%, 0%, .15) 0 -5px 6px 4px,
        /* outer SD */
        hsla(0, 0%, 100%, .5) 0 5px 6px 4px;
    /* outer HL */

    transition: color .2s;
}



/* Radial ------------------------- */

.radial.metal {
    width: 160px;
    height: 160px;
    line-height: 160px;
    border-radius: 80px;
    background-image: -webkit-radial-gradient(50% 0%, 8% 50%, hsla(0, 0%, 100%, .5) 0%, hsla(0, 0%, 100%, 0) 100%),
        -webkit-radial-gradient(50% 100%, 12% 50%, hsla(0, 0%, 100%, .6) 0%, hsla(0, 0%, 100%, 0) 100%),
        -webkit-radial-gradient(0% 50%, 50% 7%, hsla(0, 0%, 100%, .5) 0%, hsla(0, 0%, 100%, 0) 100%),
        -webkit-radial-gradient(100% 50%, 50% 5%, hsla(0, 0%, 100%, .5) 0%, hsla(0, 0%, 100%, 0) 100%),

        -webkit-repeating-radial-gradient(50% 50%, 100% 100%, hsla(0, 0%, 0%, 0) 0%, hsla(0, 0%, 0%, 0) 3%, hsla(0, 0%, 0%, .1) 3.5%),
        -webkit-repeating-radial-gradient(50% 50%, 100% 100%, hsla(0, 0%, 100%, 0) 0%, hsla(0, 0%, 100%, 0) 6%, hsla(0, 0%, 100%, .1) 7.5%),
        -webkit-repeating-radial-gradient(50% 50%, 100% 100%, hsla(0, 0%, 100%, 0) 0%, hsla(0, 0%, 100%, 0) 1.2%, hsla(0, 0%, 100%, .2) 2.2%),

        -webkit-radial-gradient(50% 50%, 200% 50%, hsla(0, 0%, 90%, 1) 5%, hsla(0, 0%, 85%, 1) 30%, hsla(0, 0%, 60%, 1) 100%);
}


.metal.radial:before,
.metal.radial:after {
    content: "";
    top: 0;
    left: 0;
    position: absolute;
    width: inherit;
    height: inherit;
    border-radius: inherit;

    /* fake conical gradients */
    background-image: -webkit-radial-gradient(50% 0%, 10% 50%, hsla(0, 0%, 0%, .1) 0%, hsla(0, 0%, 0%, 0) 100%),
        -webkit-radial-gradient(50% 100%, 10% 50%, hsla(0, 0%, 0%, .1) 0%, hsla(0, 0%, 0%, 0) 100%),
        -webkit-radial-gradient(0% 50%, 50% 10%, hsla(0, 0%, 0%, .1) 0%, hsla(0, 0%, 0%, 0) 100%),
        -webkit-radial-gradient(100% 50%, 50% 06%, hsla(0, 0%, 0%, .1) 0%, hsla(0, 0%, 0%, 0) 100%);
}

.metal.radial:before {
    transform: rotate(65deg);
}

.metal.radial:after {
    transform: rotate(-65deg);
}




/* Linear ------------------------- */

.metal.linear {
    width: 100px;
    font-size: 4em;
    height: 80px;
    border-radius: .5em;
    background-image: -webkit-repeating-linear-gradient(left, hsla(0, 0%, 100%, 0) 0%, hsla(0, 0%, 100%, 0) 6%, hsla(0, 0%, 100%, .1) 7.5%),
        -webkit-repeating-linear-gradient(left, hsla(0, 0%, 0%, 0) 0%, hsla(0, 0%, 0%, 0) 4%, hsla(0, 0%, 0%, .03) 4.5%),
        -webkit-repeating-linear-gradient(left, hsla(0, 0%, 100%, 0) 0%, hsla(0, 0%, 100%, 0) 1.2%, hsla(0, 0%, 100%, .15) 2.2%),

        linear-gradient(180deg, hsl(0, 0%, 78%) 0%,
            hsl(0, 0%, 90%) 47%,
            hsl(0, 0%, 78%) 53%,
            hsl(0, 0%, 70%)100%);
}



/* active ------------------------- */

.metal:active {
    color: hsl(210, 100%, 40%);
    text-shadow: hsla(210, 100%, 20%, .3) 0 -1px 0, hsl(210, 100%, 85%) 0 2px 1px, hsla(200, 100%, 80%, 1) 0 0 5px, hsla(210, 100%, 50%, .6) 0 0 20px;
    box-shadow:
        inset hsla(210, 100%, 30%, 1) 0 0px 0px 4px,
        /* border */
        inset hsla(210, 100%, 15%, .4) 0 -1px 5px 4px,
        /* soft SD */
        inset hsla(210, 100%, 20%, .25) 0 -1px 0px 7px,
        /* bottom SD */
        inset hsla(210, 100%, 100%, .7) 0 2px 1px 7px,
        /* top HL */

        hsla(210, 100%, 75%, .8) 0 0px 3px 2px,
        /* outer SD */
        hsla(210, 50%, 40%, .25) 0 -5px 6px 4px,
        /* outer SD */
        hsla(210, 80%, 95%, 1) 0 5px 6px 4px;
    /* outer HL */
}