sakura/resources/assets/less/yuuno/bem/content.less

.content {
    margin: 10px auto;
    padding: 2px 3px;
    max-width: 1024px;
    border: 1px solid #9475B2;
    box-shadow: 0 0 3px #9475B2;
    border-radius: 3px;
    background: #D3BFFF;

    &__header {
        margin: -1px -2px;
        padding: 4px 5px 5px;
        font-weight: 700;
        font-size: 20px;
        color: #306;
        background: linear-gradient(90deg, rgba(148, 117, 178, .7), rgba(148, 117, 178, 0)) #C2AFFE;
        border-radius: 2px;
        word-wrap: break-word;
        text-align: left;

        &--alt {
            margin: -1px -2px -1px;
            padding: 4px 5px 5px;
            background: linear-gradient(270deg, rgba(148, 117, 178, .7), rgba(148, 117, 178, 0)) #C2AFFE;
            text-align: right;
        }
    }

    &--auth {
        text-align: center;
        width: auto;
        max-width: 400px;
    }

    &--left {
        float: left;
        width: 688px;
    }

    &--right {
        float: right;
        width: 334px;
    }

    @media (max-width: 1064px) {
        &--left,
        &--right {
            width: 100% !important;
        }

        &--left {
            border-top: 1px solid #9475B2;
        }
    }

    &--alt {
        background: #C2AEEE;
    }
}