.button-add-demo {
    margin-top: 20px;
    margin-left: 20px;
}

.button-add-demo label {
    font-size: 18px;
    font-weight: normal;
    font-family: auto;
    color: black;
}

.demo-buttons-group {
    margin-top: 20px;
}

/* Button concept */
/* Reset */
@import url(//codepen.io/chrisdothtml/pen/ojLzJK.css);

smart-button.button-concept {
    width: auto;
    height: auto;
    color: white;
    border: none;
    outline: none;
    box-shadow: 0 0 20px 0 rgba(0, 0, 0, 0.3);
    background: transparent;
    --smart-button-opacity-focus: initial;
    --smart-button-opacity-hover: initial;
    --smart-button-opacity-active: initial;
}

smart-button.button-concept button {
    padding: 0;
}

/* Main Styles */
smart-button.button-concept .button-add {
    display: flex;
    background-color: #168ea6;
    width: 170px;
    height: 50px;
    line-height: 40px;
    color: #fff;
    position: relative;
    cursor: pointer;
    overflow: hidden;
    border-radius: 6px;
    transition: all 0.25s cubic-bezier(0.31, -0.105, 0.43, 1.4);
}

smart-button.button-concept .button-add span,
smart-button.button-concept .button-add .icon {
    display: block;
    height: 100%;
    text-align: center;
    position: relative;
    top: 0;
}

smart-button.button-concept .button-add span {
    width: 72%;
    padding-top:4px;
    line-height: inherit;
    font-size: 22px;
    text-transform: uppercase;
    left: 0;
    transition: all 0.25s cubic-bezier(0.31, -0.105, 0.43, 1.4);
}

smart-button.button-concept .button-add span:after {
    content: '';
    background-color: #176a7a;
    width: 2px;
    height: 70%;
    position: absolute;
    top: 15%;
    right: -1px;
}

smart-button.button-concept .button-add .icon {
    width: 28%;
    padding-top:2px;
    right: 0;
    transition: all 0.25s cubic-bezier(0.31, -0.105, 0.43, 1.4);
}

smart-button.button-concept .button-add .icon .fa {
    font-size: 40px;
    vertical-align: middle;
    transition: all 0.25s cubic-bezier(0.31, -0.105, 0.43, 1.4), height 0.25s ease;
}

smart-button.button-concept .button-add .icon .fa-tag {
    display: none;
}

smart-button.button-concept .button-add.success span,
smart-button.button-concept .button-add:hover span {
    left: -72%;
    width: 0 !important;
    opacity: 0;
}

smart-button.button-concept .button-add.success .icon,
smart-button.button-concept .button-add:hover .icon {
    width: 100%;
}

smart-button.button-concept .button-add.success .icon .fa,
smart-button.button-concept .button-add:hover .icon .fa {
    font-size: 50px;
}

smart-button.button-concept .button-add.success {
    background-color: #27ae60;
}

smart-button.button-concept .button-add.success .icon .fa-plus-circle {
    display: none;
}

smart-button.button-concept .button-add.success .icon .fa-tag {
    display: inline-block;
}

smart-button.button-concept .button-add:hover {
    opacity: .9;
}

smart-button.button-concept .button-add:active {
    opacity: 1;
}