html {
    height: 100%;
}

body {
    background-color: black;
    margin: 0;
    padding: 0 16px;
    display: flex;
    align-items: center;
    height: 100%;
}

* {
    color: lime;
    font-family: "JetBrains Mono", monospace;
}

.container {
    width: 100%;
    max-width: 800px;
    height: 200px;
    position: relative;
    border: 3px double lime;
    padding: 8px;
    margin: auto;
    display: flex;
    align-items: center;
}

.container .title{
    position: absolute;
    top: -18px;
    left: 8px;
    background-color: black;
    font-size: 32px;
    font-weight: normal;
    margin: 0;
    padding: 0 8px;
}

.container .message {
    margin: auto;
    font-size: 48px;
}

.container .message .cursor {
    animation: cursor-animation 1s steps(1, start) infinite;
}

@keyframes cursor-animation {
    50% {
        visibility: hidden;
    }
}