jQuery .attr不指定宽度或高度

Question

The following code attributes the src to .ajax-loader which is an img but not the height or width. Am I doing something wrong?

  $(".ajax-loader").attr({
    src: "http://test.com/loading.gif",
    height: 16,
    width: 16
  });

Edit: This is being loaded by Contact Form 7 which is a WordPress plugin. I don't understand because the src is changing fine. However, one thing I noticed was that the height and width attributes aren't present. I am trying to add them in. Is this why they aren't showing up?

Link to website

Answer 1

You could use .css() :

$(".ajax-loader").attr("
    "src", "http://keebs.com/wp-content/themes/keebs/images/ajax-loader.gif")
   .css({
    height: "16px",
    width: "16px"
  });

Answer 2

您需要更新CSS的height和width属性： $(".ajax-loader").css({height:"16px", width:"16px"});

Answer 3

使用.height（）和.width（）设置宽度和高度。

$(".ajax-loader").width(16).height(16);