style.css

html, body {
    width: 100%;
    height: 100%;
    margin: 0;
    border: 0;
    padding: 0;
}

html {
    background: url('img/wallpaper.webp');
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

body {
    position: absolute;
    top: 0;
    -webkit-backdrop-filter: blur(7px);
    backdrop-filter: blur(7px);
    background-color: rgba(0, 0, 0, 0.274);

    text-align: center;
}

.buttongrid {
    width: 70vh;
    height: 70vh;
    background: url('img/transparencyeffect.png') repeat;
    background-size: 2.5% 2.5%;

    display: grid;
    grid-template-columns: repeat(16, 1fr);
    grid-template-rows: repeat(16, 1fr);
    grid-column-gap: 0px;
    grid-row-gap: 0px;

    -webkit-user-select: none;
    user-select: none;

    z-index: 9;
}

.pixelbtn {
    border-radius: 0;
    border: 0.25px solid rgb(0, 0, 0);
    background-color: transparent;

    cursor: url('img/pencil.cur'), default;
}

.editor {
    text-align: center;

    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.controls {
    margin: 1vh;
}

.preview {
    visibility: hidden;
}

.control-button {
    padding: 0.5vh 1vh;
    font-family: Segoe UI,Frutiger,Frutiger Linotype,Dejavu Sans,Helvetica Neue,Arial,sans-serif; 
    /* font-weight: bold; */
    font-size: 1.5vh;
    margin: 0.25vh;

    border-radius: 5px;
    border: 1px solid rgb(102, 102, 102);

    background-color: rgb(60, 60, 60);

    color: #fff;
}

.control-button:hover {
    background-color: rgb(40, 40, 40);
}

.control-button:active {
    background-color: rgb(20, 20, 20);
}

.head-title {
    font-size: 4vh;
    font-family: Segoe UI,Frutiger,Frutiger Linotype,Dejavu Sans,Helvetica Neue,Arial,sans-serif;
    color: #fff;
}

.color-launch {
    height: 3.5vh;
    width: 5vh;
}