.alert-error, .alert-success, .alert-info, .alert-warning {
    border-left-style: solid;
    border-left-width: 0.3em;
    padding-left: 1em;
    padding-right: 0.5em;
    padding-top: 1.5em;
    padding-bottom: 1.5em;
    margin-bottom: 1em;
}

.alert-title {
    font-weight: bold;
    margin-bottom: 0.8em;
    display: block;
}

.alert-error {
    border-left-color: red;
    background-color: rgb(255, 200, 209);
}

.alert-success {
    border-left-color: green;
    background-color: rgb(200, 255, 209);
}

.alert-info {
    border-left-color: blue;
    background-color: rgb(209, 200, 255);
}

.alert-warning {
    border-left-color: orangered;
    background-color: rgb(255, 215, 200);
}