.alert {
    font-size: 15px;
    width: 100%;
    border: 1px solid black;
    border-radius: 5px;
    padding: 10px;
    margin-bottom: 15px;
    position: relative;
}
.alert.error {
    background: red;
}
.alert.success {
    background: green;
}
.close {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
}
.close:hover {
    cursor: pointer;
}