html,
body {
    height: 100%;
}

body {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-align: center;
    align-items: center;
    padding-top: 40px;
    padding-bottom: 40px;
    background-color: #f5f5f5;
}

.form-signin {
    width: 100%;
    max-width: 420px;
    padding: 15px;
    margin: auto;
}

.form-label-group {
    position: relative;
    margin-bottom: 1rem;
}

.form-label-group>input,
.form-label-group>label {
    height: 3.125rem;
    padding: .75rem;
}

.form-label-group>textarea {
    height: 6.125rem;
    padding: .75rem;
}

.form-label-group>label {
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    width: 100%;
    margin-bottom: 0;
    /* Override default `<label>` margin */
    line-height: 1.5;
    color: #495057;
    pointer-events: none;
    cursor: text;
    /* Match the input under the label */
    border: 1px solid transparent;
    border-radius: .25rem;
    transition: all .1s ease-in-out;
}

.form-label-group input::-webkit-input-placeholder,
.form-label-group textarea::-webkit-input-placeholder {
    color: transparent;
}

.form-label-group input:-ms-input-placeholder,
.form-label-group textarea:-ms-input-placeholder {
    color: transparent;
}

.form-label-group input::-ms-input-placeholder,
.form-label-group textarea::-ms-input-placeholder {
    color: transparent;
}

.form-label-group input::-moz-placeholder,
.form-label-group textarea::-moz-placeholder {
    color: transparent;
}

.form-label-group input::placeholder,
.form-label-group textarea::placeholder {
    color: transparent;
}

.form-label-group input:not(:placeholder-shown) {
    padding-top: 1.25rem;
    padding-bottom: .25rem;
}

.form-label-group input:not(:placeholder-shown)~label,
.form-label-group textarea:not(:placeholder-shown)~label {
    padding-top: .25rem;
    padding-bottom: .25rem;
    font-size: 12px;
    color: #777;
}

label {
    color: #646764;
    font-weight: 600;
}

@keyframes prism-click-to-copy-floatup {
    20% {
        opacity: .999
    }
    to {
        transform: translate3d(-50%, -17px, 0)
    }
}

.btn-copy {
    font-size: .575rem;
}

.btn-copy.copying:after {
    animation: prism-click-to-copy-floatup .5s ease-in-out
}

.btn-copy:after {
    color: #0069ff;
    content: "Copied";
    display: inline-block;
    position: absolute;
    top: -12px;
    right: 0;
    opacity: .001;
    text-align: center;
    transform: translate3d(-50%, 0, 0);
    -webkit-backface-visibility: hidden;
    white-space: nowrap;
}


/* Fallback for Edge
-------------------------------------------------- */

@supports (-ms-ime-align: auto) {
    .form-label-group>label {
        display: none;
    }
    .form-label-group input::-ms-input-placeholder {
        color: #777;
    }
}


/* Fallback for IE
-------------------------------------------------- */

@media all and (-ms-high-contrast: none),
(-ms-high-contrast: active) {
    .form-label-group>label {
        display: none;
    }
    .form-label-group input:-ms-input-placeholder {
        color: #777;
    }
}