html, body, div, h1, h2, canvas{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

h1{
    width: 100%;
    text-align: center;
    line-height: 50px;
    font-size: 25px;
}

img{
    height: 40px;
    position: relative;
    top: 10px;
}

.cat-preview{
    width: 100%;
    background-color: white;
    position: sticky;
    top: 0;
}

#cat-preview-canvas{
    height: 400px;
    width: 100%;
    max-width: 400px;
    display: block;
    margin: 0 auto;
    border: 3px solid black;
}

.cat-param{
    width: 100%;
    margin-top: 20px;
}

.param-input{
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    height: 36px;
}

label{
    display: inline-block;
    width: 120px;
}

hr{
    width: 100%;
    max-width: 400px;
}