By being able to toggle a web composition on or off, web developers and designers can have a visual guide for pixel-perfect accuracy of the position and dimensions of web page components.

借由切换网页组成的开关，网页开发者与设计师拥有可视化指导，精确位置和网页部件的尺寸。

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The method of linear aiming is researched and improved, by which, the positioning accuracy can be reached to 0.1 pixel interval and straight line in any position can be measured.

研究和改进了直线瞄准的方法，直线的定位精度可以达到0.1像素间距，并且可以测量任意位置的直线。

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