.middle () {
    position: relative;
    vertical-align: middle;
}
.hidden {
    display: none;
}

html, body{
    padding: 0px;
    margin: 0px;
    box-sizing: border-box;
}
body {
    display: flex;
    flex-flow: column;
    height: 100%;
    background: url('/customize/bg3.jpg') no-repeat center center;
    background-size: cover;
    background-position: center;
}

// created in the html
#canvas-area {
    flex: 1;
    display: flex;
}
// created by fabricjs. styled so defaults don't break anything
.canvas-container {
    margin: auto;
    background: white;
    & > canvas {
        border: 1px solid black;
    }
}

// contains user tools
#controls {
    display: flex;
    align-items: center;
    justify-content: center;

    position: relative;
    border-top: 1px solid black;
    background: white;

    padding: 1em;

    & > * + * {
        margin: 0;
        margin-left: 1em;
    }

    #width, #opacity {
        .middle;
    }
    #clear, #delete, #toggleDraw {
        display: inline;
        vertical-align: middle;
    }
    .selected {
        display: flex;
        align-items: center;
        justify-content: center;
        z-index: 9001;

        width: 100px;
        height: 100px;
    }

    .range-group {
        display: flex;
        flex-direction: column;
        position: relative;

        input[type="range"] {
            background-color: inherit;
        }

        & > span {
            cursor: default;
            position: absolute;
            top: 0;
            right: 0;
        }
    }
    .range-group:first-of-type {
        margin-left: 2em;
    }
    .range-group:last-of-type {
        margin-right: 1em;
    }
}

/* Colors */
#colors {
    .middle;
    z-index: 100;
    background: white;
    display: flex;
    justify-content: space-between;

    padding: 1em;

    span.palette-color {
        height: 4vw;
        width: 4vw;
        display: block;
        margin: 5px;
        border: 1px solid black;
        vertical-align: top;
        border-radius: 50%;
        transition: transform 0.1s;

        &:hover {
            transform: scale(1.2);
        }
    }
}

// used in the toolbar if supported
#color-picker {
    display: block;
}

// input[type=color] must exist in the dom to work correctly
// styled so that they don't break layouts

#pickers {
    visibility: hidden;
    position: absolute;
    width: 0;
    height: 0;
    z-index: -5;
}

.btn.btn-default {
    background-color: #BBB;
    color: black;

    &:hover {
        background-color: #DDD;
    }
}