.activity-list {
    box-sizing: border-box;
    padding-left: 21px;
    position: relative;
}
.activity-list::before {
    bottom: 0;
    content: "";
    display: block;
    left: 0;
    position: absolute;
    top: 0;
    width: 2px;
    z-index: -1;
}
.activity-list h3 {
    margin-bottom: 0;
    margin-left: -27px;
    padding-bottom: 15px;
}
.activity-list h3 .octicon {
    display: inline-block;
    fill: currentcolor;
    margin-right: 8px;
    overflow: hidden;
    vertical-align: text-bottom;
}
.activity-list .item .details {
    font-size: 11px;
}
.activity-list .item .details .reply {
    padding-left: 5px;
}
.activity-list .item .details .reply a {
    padding-left: 20px;
}
.activity-list .item .images {
    margin: 10px 0 0;
    overflow: hidden;
}
.activity-list .item .images .image {
    display: block;
    float: left;
    margin-right: 2px;
    overflow: hidden;
}
.activity-list .item .images .image img {
    display: block;
    width: 100%;
}
.activity-list .item .images .image.more {
    font-size: 18px;
    line-height: 64px;
    text-align: center;
}
.activity-list .item .images .image.more a {
    display: block;
    height: 64px;
    overflow: hidden;
    text-decoration: none;
    width: 64px;
}
.activity-list .item .actions {
    float: right;
    visibility: hidden;
}
.activity-list .item:hover .actions {
    visibility: visible;
}