metro.less

@import "./mulicolumn.less";
[ms-controller]{
 //  visibility:hidden;
display:none;
}
.columns {
    width: 2200px;
    background: #a9ea00;
    .column-width(340px);
    @value: 1px solid blue;
    //  .column-rule(@value);
    .column-gap(0px);
    margin: 0px;
    font-size: 0;
    -webkit-text-size-adjust: none;
    height: 600px;
}

.noPaddingRight {
    padding-right: 0;
}

.before(@width, @top) {
    &:before {
        content: "";
        display: block;
        width: @width;
        height: 5px;
        position: absolute;
        top: @top;
        background: #01B4D2;
    }
}

.hover(@width, @top) {
    .appbody {
        .before(@width, @top);
    }
}

.hover {
    &.app_small {
        .hover(150px, 15px);
        &.placehoder {
            .before(150px, 20px);
        }
    }
    &.app_middle {
        .hover(320px, 15px);
        &.placehoder {
            .before(320px, 15px);
        }
    }
    &.app_big {
        .hover(320px, 15px);
    }

}

app {
    display: inline-block;
    width: 150px;
    height: 150px;
    position: relative;
    list-style: none;
    //   padding:0px;
    padding: 20px 20px 0px 20px;
    font-size: 12px;
    .column-gap(0);
}

.fixb() {
    background: yellow;
    text-align: center;
    opacity: .3;
    display: block;
}

.placehoder {
    &.app_small {
        height: 160px;
        width: 180px;
        box-sizing: border-box;
        -moz-box-sizing: border-box;
        b {
            width: 150px;
            height: 150px;
            .fixb(); //use relative positioned pseudo element to fix the elements of dynamic insertion position alignment
            &:before {
                content: "";
                display: block;
                width: 150px;
                height: 10px;
                position: relative;
                top: 0px;
                opacity: .3;
                background: yellow;
            }
        }
    }
    &.app_middle {
        b {
            width: 320px;
            height: 150px;
            .fixb();
        }
    }
}

.appbody {
    background: red;
    width: 100%;
    height: 100%;
}

.appbody:hover {
    outline: 10px solid rgb(215, 166, 227);
}

.apphead {
    width: 100%;
    height: 30px;
    line-height: 30px;
    text-align: center;
    background: #fff;
    cursor:move;
}

.app_middle {
    width: 320px;
    height: 150px;
}

.app_big {
    width: 320px;
    height: 320px;
}