ふきだし

gistfile1.less

@charset "utf-8";
/* @import "reset.css"; */

body {
    color: #333;
}

p {
    line-height: 1.4;
}

.msg_area {
    overflow: hidden;
    margin: 20px;
}

.icon_box, .arrow_box {
    float: left;
}

.icon_box {
    margin-right: 10px;
    width: 50px;
    height: 50px;
    background: #333;
}

.arrow_box {
    @arrow_size: 7px;

    padding: 10px;
    width: 300px;
    position: relative;
    background: #fff;
    border: 1px solid #8a8a8a;
    border-radius: 3px;

    &:after, &:before{
        right: 100%;
        border: solid transparent;
        content: " ";
        height: 0;
        width: 0;
        position: absolute;
        top: 15px;
        pointer-events: none;
    }
    &:after {
        border-color: rgba(255, 255, 255, 0);
        border-right-color: #fff;
        border-width: @arrow_size;
        margin-top: -@arrow_size;
    }
    &:before {
        border-color: rgba(138, 138, 138, 0);
        border-right-color: #8a8a8a;
        border-width: @arrow_size + 1;
        margin-top: -@arrow_size - 1;
    }
}