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在研究響應式的時候，記錄了一些感想，分享出來，拋磚引玉，希望可以和大家一起討論。總結下來，響應式比之前想象的要復雜得多。 At the time of the reactive, recorded some thoughts, to share, topic and hope can discuss with you. Summary and response type is much more complex than previously thought. 1. ie9以下（不包括ie9）采用ie條件注釋，為ie8以及一下單獨開一個樣式文件 1. Internet explorer 9 the following (not including ie 9) using conditional comments, ie for ie8 open a style as well as a separate file 2. 一個模塊的mq樣式整體放在這個模塊的樣式的之后，符合層疊邏輯，也同時以免被層疊。 2. A module of mq style as a whole in the style of this module, in line with the cascade logic, at the same time to avoid the cascade. 3. 祈求在一個相應點上同時做變化幾乎是不可能的，因為版式中間的變化，無論是視覺還是具體的編碼人員不可能掌握所有細節。 3. Pray at a corresponding point do change at the same time it is almost impossible, because the format in the middle of the change, whether visual or specific coder can't grasp all the details. 4. 流體布局很關鍵，%視父級為參照物，這一點雖然很多人都知道，但是實際做的時候卻最容易被忽略。 4. The fluid is key layout, % parent as reference, that although a lot of people know, but actually do is the most easy to be ignored. 5. 清除浮動也很重要，切記。 5. Remove the floating is also very important, remember. 6. 如果你希望邊框、邊距（內、外）也在100%的范圍內，直接設置width:auto就好了，不要給予希望在新的css3屬性上，也不要寄希望在-webkit上，-webkit-很容易就會變成下一個ie6了。 6. If you want the borders, margins (internal and external) are in the 100% range, directly set width: auto, don't give hope on the new range of attributes, also do not hope on - its, its - it would be easy to become the next ie6. 7. 合理的嵌套更加健壯，用一個包裝元素來替代設置當前元素margin或者padding。舉例，假如有A和B兩個元素，width是40%，maring-right是10%，這樣很容易在搜索瀏覽器的時候篡位，所以用一個包裝元素C去分別包裹A和B，然給給C設置50%，A和B分別設置為80%。這樣就是合理且健壯的嵌套了。 7. Reasonable nested more robust, with a wrapper element to replace the current element margin or padding. For example, if there is A and B two elements, width is 40%, maring u-right is 10%, so it is easy to search browser usurper, so use A packing element C to package A and B, respectively, but to set 50% C, A and B respectively set to 80%. This is the reasonable and strong nested. 8. 兩行兩列這種設計，由于流體布局和字數的不同，所以為每一行添加一個包裝元素，更加健壯。也就是說，先做兩行，再在每一行里做兩列。 8. Two lines of two columns of the design, due to the different fluid layout and word, so add a packing element for each row, more robust. That is to say, do first two lines, then do two column in each row. 9. 不要奢望在在每一個像素的寬度上不會出現超出預期的表現，因為沒有任何人知道頁面在每一個像素寬度時候的表現的樣子，頁面越負責可預期的就越不準確。所以mq可能真的是“非預期數值”（預期數值指代在設計和實現之前約定的響應點） 9. Don't expect in each pixel width will not appear on more than expected, because no one know page at each pixel width, the performance of the page, the more inaccurate is responsible for the more predictable. Mq could really is so "unexpected numerical" (expected value refers to the response of the point before the design and implementation agreement) 10. 相同區間的mq和mq會層疊，全局的樣式也會和mq中的樣式層疊，所以屬性盡量不要寫成縮寫。以減少忘記的風險。 10. The same range of mq and mq will cascade, global style will and mq in cascading style, so try to don't write abbreviations properties. To reduce the risk of forgetting. 11. 圖片的自適應處理不容易，特別是有邊框的，如果正常條件（沒有利用mq來約束）下設置了寬和高，在另外一個mq下，僅僅設置一個屬性是不行的，還是那句話，mq不是二選一（除非是兩個不同的mq區間），而是層疊！！ 11. Image adaptive processing is not easy, especially have borders, if under normal conditions (no use mq to constraints) set the width and height, in another mq, just setting an attribute is not enough, or that sentence, mq is not a choice (unless they are two different mq interval), but the cascading!!!!! 12. 如果水平列表的兩端的元素兩端對齊，以四個元素為例，那么除了前三個預留左邊距，最后一個為零；或者第一個右邊據為0；后三個有右邊距以外。可以采用第一個左側有，最后一個右側有，中間兩個左右偏移邊距來做，短的一面為 邊距除以空白數，比如4個列表項，邊距為40,則40除以3。好處么？就是可以保證每一個外包裝為通欄的25%。 12. If the horizontal alignment on both ends of the elements, at the ends of the list of four elements, for example, so in addition to the first three reserve left, the last one is zero; Or according to the first right to 0; Having the right margin after three. Can take the first left, the last one on the right, about the middle two offset margin, short side for margin divided by the number of blank, such as 4 list item, the margin is 40, 40, divided by 3. The benefits? Is to ensure every packaging 25% of the banner. 13. 四個25%，兩個50% 沒關系，但是50% 25% 25%就可能會掉下去最后一個，所以24.99，22.49有時還會相差1~2像素。 13. 25%, four two 50% it doesn't matter, but 50% 25% 25% could fall off the last, so 24.99, 22.49 sometimes differ 1 ~ 2 pixels. 14. 如果版式變化不大，那么從大到小的寫mq，不必寫一個區間，只寫最大值即可，這樣一層一層的繼承，小尺寸繼承大尺寸，另外，不用過分擔心選擇器本身權重的問題，mq會提高其優先級。 14. If the format change is not big, from big to small write mq, don't need to write an interval, you just write a maximum, so one layer of inheritance, inherit the large size, small size also, don't have to worry about the weight of the selector itself, mq can raise its priority. 15. 像導航和版權這種在pc、pad、phone截然不同的版式。mq，就寫區間。這樣在區間外就等于這些dom毫無樣式，這樣就不比擔心由繼承引發的覆蓋、優先級、重寫以及未知問題。減少了屬性的重寫，提高了效率、降低了修改成本。其實就是等于一個dom，為不同的設備寫不同的樣式，這些樣式之間不繼承。 15. In the PC, pad, such as navigation and copyright phone different format. Mq, just write range. So no style outside the interval is equal to the dom, so it is no worry about coverage caused by inheritance, priority, rewriting and unknown problems. Reduce the attributes of rewriting, to enhance the efficiency and reduce the cost changes. Is equal to a dom, write different styles for different devices, these styles are not inherited. 16. 如果你希望幾個元素是相對位置不變的話，請將他們包裹，通過這個包裹元素使他們整體與其他元素或元素組做排版，所以一個健壯的響應式離不開這些看似“冗余”的包裹元素。但還是以最少的可實現目標的dom層級為目標。 16. If you want a few elements are relative position unchanged, please wrap them, through this package elements to make them as a whole with other elements or elements groups do typesetting, so a robust response type without these seemingly "redundant" package elements. But with minimal can achieve the goal of dom level as the goal. 17. 關于背景圖，以中心為原點進行“裁剪”是理智的，已某一側為原點看起來都有點怪。另外可以使用background-size某個值為auto，另外一個使用% 17. The background, in order to center "utting out" is the reason for the origin, has one side to the origin seem a bit strange. Also can use the background - size some value for auto, another use % 18. 大圖片請寫在一個mq區間內，不要只寫最大值，這樣會搞定按需加載的問題。 18. The big picture, please write in a mq interval, don't just write a maximum, this will fix on demand loading problem.