As a final tweak , mask all these adjustment layers so that they didn ' t have so much of an effect on the background colour 作为一个最后调整，口罩，所有这些调整层，使他们不会有这么多的影响的背景颜色。
Transparent gifs are useful because they appear to blend in smoothly with the user s display , even if the user has set a background colour that differs from that the developer expected 网页设计是重要的关键之一，好的设计可以加深客户对企业的印象，发挥网站的正确功能。而目前
Web pages and to fill in forms online easily . aided by clear graphics , symbols and labels , contrasting background colours and fonts , as well as using the characters as the main inputs in filling government application forms , users can handle their personal matters efficiently , conveniently and independently through esd 特设纯文字版，方便失明及视障人士并在网页的美术设计颜色标志和文字安排等各方面都特别考虑到他们的需要，令他们能轻易阅读
