How do I fix inconsistent Textarea bottom margin in Firefox and Chrome?

问题

I'm trying to eliminate the extra bottom margin that both FF and Chrome seem to give to Textareas. Surprisingly IE seems to do it correctly. I would like to avoid using conditional includes but CSS3 tweaks are OK.

Sample Code

.red-box {
    background-color: red;
    overflow: hidden;
}
textarea {
    border: solid 1px #ddd;
    margin: 0px; /* Has no effect */
}

<div class="red-box">
    <textarea>No Margin Please!</textarea>
</div>

回答1:

By default, I believe both Chrome and Firefox will set these elements as display: inline-block;. Set display: block in your styles and you should be all set.

回答2:

If you want to leave it inline, simply try

vertical-align: top

回答3:

Set display: block for your textarea.

回答4:

Just disable resize as follow

textarea{resize: none;}

来源：https://stackoverflow.com/questions/3453959/how-do-i-fix-inconsistent-textarea-bottom-margin-in-firefox-and-chrome