seafood/wechat/commons/extension/extension.wxss

#_toast {
    position: fixed;
    top: 20%;
    left: 0;
    width: 100%;
    height: 0;
    background: #ff0;
    z-index: 10000;
    padding: 0 120rpx;
    text-align: center;
}

#_toast_title {
    font-size: 11pt;
    display: inline-block;
    background: rgba(0, 0, 0, 0.85);
    color: #fff;
    margin: 0 auto;
    padding: 16rpx 32rpx;
    border-radius: 16rpx;
    max-height: 60vh;
    overflow-y: auto;
    overflow-x: hidden;
    text-align: left;
    transition: 150ms;
    word-break: break-all;
    box-shadow:0 0 25rpx 5rpx rgba(0, 0, 0, .5);

}

#_toast_title.hide {
    opacity: 0;
    visibility: hidden;
}