html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

html {
  position: relative;
  min-height: 100%;
}

body {
  margin-bottom: 60px;
}

/* buttons */
.btn-google:hover {
    background: #b22222;
    color: #fff;
}

.btn-facebook:hover {
    background: #2b4db1;
    color: #fff;
}

.btn-twitter:hover {
    background: #007bb6;
    color: #fff;
}

.btn-microsoft:hover {
    background: #00618E;
    color: #fff;
}

.btn-facebook {
    background: #305c99;
    color: #fff;
}

.btn-twitter {
    background: #00cdff;
    color: #fff;
}

.btn-google {
    background: #d24228;
    color: #fff;
}

.btn-linkedin {
    background: #007bb6;
    color: #fff;
}

.btn-microsoft {
    background: #007bb6;
    color: #fff;
}