javascript - 如何使用灯箱显示图像的缩放尺寸？

Question

我使用灯箱控件 ( http://leandrovieira.com/projects/jquery/lightbox/ ) 来显示图像。但是控件总是显示全尺寸的图片，如果想显示半尺寸的图片怎么办？谢谢!

/* line 7, ../sass/lightbox.sass */
body:after {
  content: url(../img/close.png) url(../img/loading.gif) url(../img/prev.png) url(../img/next.png);
  display: none;
}

/* line 11, ../sass/lightbox.sass */
.lightboxOverlay {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 9999;
  background-color: black;
  filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=80);
  opacity: 0.8;
  display: none;
}

/* line 20, ../sass/lightbox.sass */
.lightbox {
  position: absolute;
  left: 0;
  width: 100%;
  z-index: 10000;
  text-align: center;
  line-height: 0;
  font-weight: normal;
}
/* line 28, ../sass/lightbox.sass */
.lightbox .lb-image {
  display: block;
  height: auto;
  -webkit-border-radius: 3px;
  -moz-border-radius: 3px;
  -ms-border-radius: 3px;
  -o-border-radius: 3px;
  border-radius: 3px;
}
/* line 32, ../sass/lightbox.sass */
.lightbox a img {
  border: none;
}

/* line 35, ../sass/lightbox.sass */
.lb-outerContainer {
  position: relative;
  background-color: white;
  *zoom: 1;
  width: 250px;
  height: 250px;
  margin: 0 auto;
  -webkit-border-radius: 4px;
  -moz-border-radius: 4px;
  -ms-border-radius: 4px;
  -o-border-radius: 4px;
  border-radius: 4px;
}
/* line 38, ../../../../.rvm/gems/ruby-1.9.3-p392/gems/compass-0.12.2/frameworks/compass/stylesheets/compass/utilities/general/_clearfix.scss */
.lb-outerContainer:after {
  content: "";
  display: table;
  clear: both;
}

/* line 44, ../sass/lightbox.sass */
.lb-container {
  padding: 4px;
}

/* line 47, ../sass/lightbox.sass */
.lb-loader {
  position: absolute;
  top: 43%;
  left: 0%;
  height: 25%;
  width: 100%;
  text-align: center;
  line-height: 0;
}

/* line 56, ../sass/lightbox.sass */
.lb-cancel {
  display: block;
  width: 32px;
  height: 32px;
  margin: 0 auto;
  background: url(../img/loading.gif) no-repeat;
}

/* line 63, ../sass/lightbox.sass */
.lb-nav {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  z-index: 10;
}

/* line 71, ../sass/lightbox.sass */
.lb-container > .nav {
  left: 0;
}

/* line 74, ../sass/lightbox.sass */
.lb-nav a {
  outline: none;
}

/* line 77, ../sass/lightbox.sass */
.lb-prev, .lb-next {
  width: 49%;
  height: 100%;
  cursor: pointer;
  /* Trick IE into showing hover */
  display: block;
}

/* line 84, ../sass/lightbox.sass */
.lb-prev {
  left: 0;
  float: left;
}
/* line 87, ../sass/lightbox.sass */
.lb-prev:hover {
  background: url(../img/prev.png) left 48% no-repeat;
}

/* line 90, ../sass/lightbox.sass */
.lb-next {
  right: 0;
  float: right;
}
/* line 93, ../sass/lightbox.sass */
.lb-next:hover {
  background: url(../img/next.png) right 48% no-repeat;
}

/* line 96, ../sass/lightbox.sass */
.lb-dataContainer {
  margin: 0 auto;
  padding-top: 5px;
  *zoom: 1;
  width: 100%;
  -moz-border-radius-bottomleft: 4px;
  -webkit-border-bottom-left-radius: 4px;
  border-bottom-left-radius: 4px;
  -moz-border-radius-bottomright: 4px;
  -webkit-border-bottom-right-radius: 4px;
  border-bottom-right-radius: 4px;
}
/* line 38, ../../../../.rvm/gems/ruby-1.9.3-p392/gems/compass-0.12.2/frameworks/compass/stylesheets/compass/utilities/general/_clearfix.scss */
.lb-dataContainer:after {
  content: "";
  display: table;
  clear: both;
}

/* line 103, ../sass/lightbox.sass */
.lb-data {
  padding: 0 4px;
  color: #bbbbbb;
}
/* line 106, ../sass/lightbox.sass */
.lb-data .lb-details {
  width: 85%;
  float: left;
  text-align: left;
  line-height: 1.1em;
}
/* line 111, ../sass/lightbox.sass */
.lb-data .lb-caption {
  font-size: 13px;
  font-weight: bold;
  line-height: 1em;
}
/* line 115, ../sass/lightbox.sass */
.lb-data .lb-number {
  display: block;
  clear: left;
  padding-bottom: 1em;
  font-size: 12px;
  color: #999999;
}
/* line 121, ../sass/lightbox.sass */
.lb-data .lb-close {
  display: block;
  float: right;
  width: 30px;
  height: 30px;
  background: url(../img/close.png) top right no-repeat;
  text-align: right;
  outline: none;
  filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=70);
  opacity: 0.7;
}
/* line 130, ../sass/lightbox.sass */
.lb-data .lb-close:hover {
  cursor: pointer;
  filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=100);
  opacity: 1;
}

Answer 1

您发布的代码是从 sass 编译而来的。要更改灯箱图像的宽度，您必须找到控制模态容器宽度的声明，看起来可能是:

.lightbox .lb-image {
    width: 50%;  /* reduce the image width to half of its original x dimension */
    height: auto; /* keep height set to auto, otherwise you might distort the image */
}

在没有看到 HTML 的情况下，很难判断 .lb-image 类是针对 img 还是它的容器。对于后者，height: auto 声明应该不是必需的。

应该对源(未编译的)sass 文件 ../sass/lightbox.sass 进行此更改然后，您必须重新编译 sass 以获得随后应用于页面的输出。

有关 sass 和 scss 的更多信息，请查看他们的网站 http://sass-lang.com/