.social-icon .item.fb {
background-image: url(../images/fb-icon.png);
background-position:center;
background-repeat: no-repeat;
width: 13px;
height: 24px;

}

.social-icon .item.fb:hover,.social-icon .item.fb:active {
background-image:url(../images/fb-icon-hover.png);
}
.social-icon .item.youtube{
background-image:url(../images/youtube-icon.png);
background-position:center;
background-repeat:no-repeat;
width:24px;
height:24px;
}

.social-icon .item.youtube:hover,.social-icon .item.youtube:active  {
background-image:url(../images/youtube-icon-hover.png)
}

.social-icon .item.line  {
background-image:url(../images/line-icon.png);
background-position:center;
background-repeat:no-repeat;
width:26px;
height:24px;
}

.social-icon .item.line:hover,.social-icon .item.line:active {
background-image:url(../images/line-icon-hover.png)
}