body {
    font-family: Arial;
    background-color:#666666;
    background-image: url("img/logoquiz.png");
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-position: left top;
    
    color: white;
    backdrop-filter: brightness(0.6) contrast(0.6);
}

h1 {
    margin-bottom: 0px;
    padding-bottom: 0px;
}
.tk-header {
    font-size: 2em;
    font-weight:900;
    -webkit-text-stroke-width: 3px;
    -webkit-text-stroke-color: black;
    color: #E5E5E5;
}

.selected {
    filter: brightness(105%);
    box-shadow: 0px 0px 3px 3px #B0B0B0;
  }

.disabled {
    filter: brightness(40%);
    opacity: 0.5;
}

form {
    background-color: rgba(100, 100, 100, 0.7);
    padding: 1em;
}

.form-text {
    color: white;
    font-weight: bold;
    font-size: 1rem;
}

.form-label {
    color: white;
    font-size: 1.3rem;
    font-weight: bold;
}

.btn-primary {
    background-color: #909090;
    border-color: transparent;
    color: white;
    font-weight: bold;
}

.btn-primary:hover {
    background-color: rgba(200, 200, 200, .7);
    border-color: transparent;
}

.alert,
.progress {
    border-radius: 0;
}

.alert-primary,
.alert-info {
    color: white;
    /*background-color: rgba(255, 248, 220, .75);*/
    background-color: #909090  !important;
    border-color: transparent;
}


.alert-success {
    color: white !important;
    background-color: #008000 !important;
    border-color: transparent !important;
}

.alert-danger {
    color: white !important;
    background-color: #A00000 !important;
    border-color: transparent !important;
}

.text-success {
    color: #FFFFFF !important;
}

.text-danger {
    color: #FFFFFF !important;
}

.bg-primary {
    background-color: #909090  !important;
}

.bg-danger {
    background-color: #909090  !important;
}

.bg-warning {
    background-color: #909090 !important;
}