.about {
    text-align: center;
    user-select: none;
}
.about > .icon {
    margin: 20px 0;
}
.about > .icon > img {
    width: 64px;
}
.about > .title {
    font-size: 24px;
}
.about > .sub_title {
    font-size: 18px;
    margin: 10px 0;
    color: #606060;
}
.tools_section {
    margin: 30px 0 0 0;
}
.tools_section > .title {
    background: white;
    padding: 13px 20px;
    border-radius: 10px 10px 0 0;
    border-bottom: 1px #f5f5f5 solid;
    font-weight: bold;
}
.tools_section > .tool_list {
    background: white;
    border-radius: 0 0 10px 10px;
    overflow: hidden;
}
.tools_section > .tool_list a {
    color: inherit;
    text-decoration: none;
}
.tools_section > .tool_list .tool_item {
    padding: 20px 30px;
    cursor: pointer;
    user-select: none;
}
.tools_section > .tool_list .tool_item > .title {
    font-size: 18px;
}
.tools_section > .tool_list .tool_item > .description {
    font-size: 14px;
    margin: 10px 0 0 0;
    color: #606060;
}