問題

I have this HTML

style="margin:0px;padding:0px;"

Here i have set bgcolor="#FFFFFF" but i want it to be transparent how to do it ?

回答1:

HTML provides no means to specify a transparent background (and the means it has to specify backgrounds of any kind are obsolete and should not be used). You can do this in CSS.

body {

background-color: transparent;

}

This will make the background of the element visible.

There is no way to make the browser window transparent.

回答2:

With inline-styling you can achieve this with:

But a better option is to put the following code:

body { background-color:transparent; }

in a CSS file which you link to in the

section of the page like so:

回答3:

background-color: transparent;

Update

However, you HAVE NO WAY to make the browser window transparent. So, even if you use the code above, your background will still be white.

回答4:

You need to use CSS instead of HTML attributes to set transparent background:

Preferably you should have a style sheet for the page where you put the styles instead of putting styles in the HTML elements.

Note: To have an iframe with a transparent background (which is the only way that a transparent background on a page can be used) you need to add the allowtransparency attribute to the iframe tag for it to work in IE:

回答5:

body {

background-color: rgba(255, 255, 255, 0.5)

};

last value is alpha - it will set transparency values between 0 and 1; 0 transparent;

來源：https://stackoverflow.com/questions/23564182/html-body-bgcolor-transparent

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