.btn-block + .btn-block {
    margin-top: 5px;
}

.btn-ok {
    color: #fff;
    background-color: #3b5998;
    border-color: rgba(0,0,0,0.2);
}

.btn-facebook {
    color: #fff;
    background-color: #3b5998;
    border-color: rgba(0,0,0,0.2);
}

.btn-google {
    color: #fff;
    background-color: #dd4b39;
    border-color: rgba(0,0,0,0.2);
}

.btn-twitter {
    color: #fff;
    background-color: #55acee;
    border-color: rgba(0,0,0,0.2);
}

.btn-linkedin {
    color: #fff;
    background-color: #007bb6;
    border-color: rgba(0,0,0,0.2);
}

.btn-instagram {
    color: #fff;
    background-color: #3F729B;
    border-color: rgba(0,0,0,0.2);
}

.btn-social {
    position: relative;
    padding-left: 44px;
    text-align: left;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.btn {
    border-radius: 3px;
    -webkit-box-shadow: none;
    box-shadow: none;
    border: 1px solid transparent;
}
.btn-block {
    display: block;
    width: 100%;
}
.btn {
    display: inline-block;
    padding: 6px 12px;
    margin-bottom: 0;
    font-size: 14px;
    font-weight: 400;
    line-height: 1.42857143;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    -ms-touch-action: manipulation;
    touch-action: manipulation;
    cursor: pointer;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    background-image: none;
    border: 1px solid transparent;
    border-radius: 4px;
}
a {
    color: #3c8dbc;
}
a {
    color: #ffffff; //#337ab7;
    text-decoration: none;
}
a {
    background-color: transparent;
}

.fa {
    display: inline-block;
    font: normal normal normal 14px/1 FontAwesome;
    font-size: inherit;
    text-rendering: auto;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.btn-social > :first-child {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 32px;
    line-height: 34px;
    font-size: 1.6em;
    text-align: center;
    border-right: 1px solid rgba(0,0,0,0.2);
}