.button_sliding {
    color: #23415b;
    background: none;
    border: none;
    padding: 15px 15px;
    font-size: 20px;
    font-weight: bold;
    letter-spacing: 3px;
    text-transform: uppercase;
    display: inline-block;
    text-align: center;
    cursor: pointer;
    box-shadow: inset 0 0 0 0 #31302B;
    -webkit-transition: all ease 0.8s;
    -moz-transition: all ease 0.8s;
    transition: all ease 0.8s;
}

.button_sliding:hover {
    box-shadow: inset 0 100px 0 0 #23415b;
    border: none;
    color: #FFF;
}

.button_sliding_top {
    color: #23415b;
    background: none;
    border: none;
    padding: 15px 15px;
    font-size: 10px;
    font-weight: bold;
    letter-spacing: 2px;
    text-transform: uppercase;
    display: inline-block;
    text-align: center;
    cursor: pointer;
    box-shadow: inset 0 0 0 0 #31302B;
    -webkit-transition: all ease 0.8s;
    -moz-transition: all ease 0.8s;
    transition: all ease 0.8s;
}

.button_sliding_top:hover {
    box-shadow: inset 0 100px 0 0 #23415b;
    border: none;
    color: #FFF;
}

.button_form {
    color: #23415b;
    background: none;
    border: none;
    width: 100%;
    padding: 15px 15px;
    font-size: 10px;
    font-weight: bold;
    letter-spacing: 2px;
    text-transform: uppercase;
    display: inline-block;
    text-align: center;
    cursor: pointer;
    box-shadow: inset 0 0 0 0 #31302B;
    -webkit-transition: all ease 0.8s;
    -moz-transition: all ease 0.8s;
    transition: all ease 0.8s;
}

.button_form:hover {
    box-shadow: inset 0 100px 0 0 #23415b;
    border: none;
    color: #FFF;
}

.button_sliding_banner {
    color: #fff;
    background: none;
    border: none;
    padding: 15px 15px;
    font-size: 25px;
    font-weight: bold;
    letter-spacing: 5px;
    text-transform: uppercase;
    display: inline-block;
    text-align: center;
    cursor: pointer;
    box-shadow: inset 0 0 0 0 #31302B;
    -webkit-transition: all ease 0.5s;
    -moz-transition: all ease 0.5s;
    transition: all ease 0.5s;
}

    .button_sliding_banner:hover {
        box-shadow: inset 0 100px 0 0 #23415b;
        border: none;
        color: #FFF;
    }