jili2/public/static/study/css/mystyle.css

html,
body,
.my-wrap {
    height: 100%;
}

body > .my-wrap {
    height: auto;
    min-height: 100%;
}

.my-main {
    height: auto;
    min-height: 100%;
    padding-bottom: 100px;
}

/* 必须使用和footer相同的高度 */

.my-footer {
	font-size: 12px;
	color: #fff;
	padding-bottom: 10px;
	padding-top:10px;
    position: relative;
    margin-top: -40px;
    /* footer高度的负值 */
    height: 40px;
    clear: both;
    line-height:2em;
    background-color: #3c4252;
}

.my-v-center{
	position: absolute;
	top: 50%;
	-webkit-transform: translateY(-50%);
	-moz-transform:  translateY(-50%);
	-ms-transform:  translateY(-50%);
	-o-transform:  translateY(-50%);
	transform:  translateY(-50%);
}

.my-footer a {
    color: white;
    text-decoration: underline
}