.event-form form {
    position: relative;
}

.event-form form.loading:before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    display: block;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.5);
    z-index: 2;
}

.event-form form.loading:after {
    content: '';
    position: absolute;
    background-color: rgba(0, 0, 0, 0.2);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-name: pulse;
    animation-duration: .7s;
    animation-iteration-count: infinite;
    z-index: 3;
}

.event-form form .col-md-6 {
    margin-bottom: 30px;
}

.event-form form input {
    width: 100%;
    padding: 13px 20px;
}

.event-form form .message {
    padding: 20px;
    border-left-width: 4px;
    border-left-style: solid;
    opacity: 0;
    height: 0;
    transition: .3s;
    box-shadow: 4px 4px 20px rgba(0, 0, 0, 0.3);
}

.event-form form .message.open {
    opacity: 1;
    height: auto;
}

.event-form form .message.success {
    border-left-color: #00e981;
}

.event-form form .message.warning {
    border-left-color: #ffc03f;
}

.event-form form .message.error {
    border-left-color: #e45342;
}