x-fab > button {
    position: absolute;
    left: 0;
    bottom: 0;
    border:none;
    color:white;
    background-color: inherit;
    border-radius: 50%;
    cursor: pointer;
    /* padding-bottom: 4px;  */
    width: 56px;
    height: 56px;
    margin: auto;
    /* -webkit-box-shadow: 2px 3px 3px 0px rgba(41, 41, 41, .3);
        -moz-box-shadow: 2px 3px 3px 0px rgba(41, 41, 41, .3);
            box-shadow: 2px 3px 3px 0px rgba(41, 41, 41, .3); */
}
x-fab[mini] > button{
    position: absolute;
    left: 0;
    bottom: 0;
    border:none;
    color:white;
    background-color: inherit;
    border-radius: 50%;
    cursor: pointer;
    padding-bottom: 0px; 
    width: 40px;
    height: 40px;
    margin: auto;
}

x-fab > button:hover {
    background-color: #FF4080;
}
x-fab > button:active {
background-color: #FF8CB3;
}

x-fab > button:focus {
outline: none;
}

x-fab x-icon
{
    fill: inherit;
}

x-fab[mini]{
    width: 40px;
    height: 40px;
    padding: 8px;
}
x-fab[mini] x-icon{
    height: 16px;
}
x-fab{
    fill: white;
    font-size:1.5em;
    display: inline-block;
    position: relative;
    outline: none;
    -moz-user-select: none;
    -ms-user-select: none;
    -webkit-user-select: none;
    user-select: none;
    cursor: pointer;
    box-sizing: border-box;
    min-width: 0;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    padding: 16px;
    z-index: 0;
}