delete.css

body {
    background-image: url('https://media.discordapp.net/attachments/916177621874769970/978944928900079636/SPOILER_0_0_AdobeCreativeCloudExpress.gif');
    background-size: cover;
    height: 100vh;
    width: 700px;
    margin: top 20px;


}

div {
    color: blue;
    background-color: lightblue;
    margin-top: 200px;
    display: block;
    text-align: center;
    border-radius: 20px 20px 20px 20px;
    opacity: 65%;
    padding: 20px;
}

input {
    width: 100px;
    border: 3px solid greenyellow;
    margin: 3px;
    border-radius: 20px;
    transition: width .2s;
}

input:hover {
    width: 150px;

}


button {
    font-size: x-small;
    color: blueviolet;
    width: 150px;
    border-radius: 20px;
    transition: width .2s;
}

button:hover {
    background-color: lightblue;
    width: 200px;
}