/*
 * Globals
 */

/* Links */
a,
a:focus,
a:hover {
  color: #fff;
}

/* Custom default button */
.btn-secondary,
.btn-secondary:hover,
.btn-secondary:focus {
  text-shadow: none; /* Prevent inheritance from `body` */
  background-color: #07bc4c;
  margin-top: 10px;
  padding: 15px;
  width: 90%;
  animation: tremer .2s;
    animation-iteration-count: 4;
}

.btn-secondary:hover{
  background-color:  #ffb307;
}

@keyframes tremer {
    0% {margin-left: 0;}
    25% {margin-left: 7px;}
    50% {margin-left: 0;}
    75% {margin-left: -7px;}
    100% {margin-left: 0;}
}


/*
 * Base structure
 */

html,
body {
  height: 100%;
  background-color: #191919;
  background-repeat: no-repeat;
}

body {
  display: -ms-flexbox;
  display: -webkit-box;
  display: flex;
  -ms-flex-pack: center;
  -webkit-box-pack: center;
  justify-content: center;
  color: #fff;

}

img {
  width: 170px;
  height: 80px;
  margin-bottom: 10px;
  margin-top: 10px;
}

.cover-container {
  max-width: 42em;
}


/*
 * Header
 */
.masthead {
  margin-bottom: 2rem;
}

.masthead-brand {
  margin-bottom: 0;
}

.nav-masthead .nav-link {
  padding: .25rem 0;
  font-weight: 700;
  color: rgba(255, 255, 255, .5);
  background-color: transparent;
  border-bottom: .25rem solid transparent;
}

.nav-masthead .nav-link:hover,
.nav-masthead .nav-link:focus {
  border-bottom-color: rgba(255, 255, 255, .25);
}

.nav-masthead .nav-link + .nav-link {
  margin-left: 1rem;
}

.nav-masthead .active {
  color: #fff;
  border-bottom-color: #fff;
}

@media (min-width: 48em) {
  .masthead-brand {
    float: left;
  }
  .nav-masthead {
    float: right;
  }
}


/*
 * Cover
 */
.cover {
  padding: 0 1.5rem;
}
.cover .btn-lg {
  padding: .75rem 1.25rem;
  font-weight: 700;
}


/*
 * Footer
 */
.mastfoot {
  background: #191919;
  color: #191919;
}