.btn-group {
    display: table;
    margin: 0 auto;
}

.line {
    background: -webkit-gradient(linear, left top, left bottom, from(#6C63FF), to(#7672bd));
    background: linear-gradient(#6C63FF 0%, #7672bd 100%);
    width: 150px;
    height: 5px;
    margin-bottom: 10px !important;
}