.input {
    position: relative;
    z-index: 1;
    display: inline-block;
    width: calc(100% - 2em);
    vertical-align: top;
}

.input__field {
    position: relative;
    display: block;
    float: right;
    padding: 0.8em;
    width: 60%;
    border: none;
    border-radius: 0;
    background: #f0f0f0;
    color: #aaa;
    -webkit-appearance: none;
    /* for box shadows to show on iOS */
}

.input__field:focus {
    outline: none;
}

.input__label {
    display: inline-block;
    float: right;
    padding: 0 1em;
    width: 40%;
    color: #6a7989;
    font-weight: bold;
    font-size: 70.25%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.input__label-content {
    position: relative;
    display: block;
    padding: 0.5em 0;
    width: 100%;
}

.graphic {
    position: absolute;
    top: 0;
    left: 0;
    fill: none;
}

.icon {
    color: #ddd;
    font-size: 150%;
}

/* Individual styles */

/* style */

.input--style {
    overflow: hidden;
}

.input__field--style {
    margin-top: 1em;
    padding: 2em 0.15em;
    width: 100%;
    background: transparent;
    color: #ffffff;
}

.input__label--style {
    position: absolute;
    bottom: 0;
    left: 0;
    color: #ffffff;
    padding: 0 0.25em;
    width: 100%;
    height: calc(100% - 1em);
    text-align: left;
    pointer-events: none;
}

.input__label-content--style {
    position: absolute;
}

.input__label--style::before,
.input__label--style::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: calc(100% - 10px);
    border-bottom: 2px solid #fff;
}

.input__label--style::after {
    margin-top: 2px;
    border-bottom: 4px solid red;
    -webkit-transform: translate3d(-100%, 0, 0);
    transform: translate3d(-100%, 0, 0);
    -webkit-transition: -webkit-transform 0.3s;
    transition: transform 0.3s;
}

.input__label--style-color-1::after {
    border-color: #333;
}

.input__label--style-color-2::after {
    border-color: hsl(160, 100%, 50%);
}

.input__label--style-color-3::after {
    border-color: hsl(20, 100%, 50%);
}

.input__field--style:focus + .input__label--style::after,
.input--filled .input__label--style::after {
    -webkit-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
}

.input__field--style:focus + .input__label--style .input__label-content--style,
.input--filled .input__label-content--style {
    -webkit-animation: anim-1 0.3s forwards;
    animation: anim-1 0.3s forwards;
}

@-webkit-keyframes anim-1 {
    50% {
        opacity: 0;
        -webkit-transform: translate3d(1em, 0, 0);
        transform: translate3d(1em, 0, 0);
    }
    51% {
        opacity: 0;
        -webkit-transform: translate3d(-1em, -40%, 0);
        transform: translate3d(-1em, -40%, 0);
    }
    100% {
        opacity: 1;
        -webkit-transform: translate3d(0, -40%, 0);
        transform: translate3d(0, -40%, 0);
    }
}

@keyframes anim-1 {
    50% {
        opacity: 0;
        -webkit-transform: translate3d(1em, 0, 0);
        transform: translate3d(1em, 0, 0);
    }
    51% {
        opacity: 0;
        -webkit-transform: translate3d(-1em, -40%, 0);
        transform: translate3d(-1em, -40%, 0);
    }
    100% {
        opacity: 1;
        -webkit-transform: translate3d(0, -40%, 0);
        transform: translate3d(0, -40%, 0);
    }
}