iview/src/styles/components/drawer.less

@drawer-prefix-cls: ~"@{css-prefix}drawer";

.@{drawer-prefix-cls} {
    width: auto;
    height: 100%;
    position: fixed;
    top: 0;

    &-inner{
        position: absolute;
    }

    &-left{
        left: 0;
    }
    &-right{
        right: 0;
    }

    &-hidden {
        display: none !important;
    }

    &-wrap {
        position: fixed;
        overflow: auto;
        top: 0;
        right: 0;
        bottom: 0;
        left: 0;
        z-index: @zindex-drawer;
        -webkit-overflow-scrolling: touch;
        outline: 0;

        &-inner{
            position: absolute;
            overflow: hidden;
        }
    }

    &-wrap * {
        box-sizing: border-box;
        -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    }

    &-mask {
        .mask;
        &-inner{
            position: absolute;
        }
    }

    &-content {
        width: 100%;
        height: 100%;
        position: absolute;
        top: 0;
        bottom: 0;
        background-color: #fff;
        border: 0;
        background-clip: padding-box;
        box-shadow: 0 4px 12px rgba(0,0,0,.15);

        &-no-mask{
            pointer-events: auto;
        }
    }

    &-header {
        .content-header;
    }

    &-close {
        z-index: 1;
        .content-close(1px, 31px);
    }

    &-body {
        width: 100%;
        height: calc(~'100% - 51px');
        padding: 16px;
        font-size: 12px;
        line-height: 1.5;
        word-wrap: break-word;
        position: absolute;
        overflow: auto;
    }

    &-no-header &-body{
        height: 100%;
    }

    &-no-mask{
        pointer-events: none;
    }
}