@scena/react-guides/src/demo/App.css

A React Guides component that can draw ruler and manage guidelines.

@import url("https://fonts.googleapis.com/css?family=Open+Sans:300,400,600&display=swap");
@import url("https://fonts.googleapis.com/css?family=Roboto:100&display=swap");
html, body {
    font-family: "Open Sans", sans-serif;
    position: relative;
    margin: 0;
    padding: 0;
    height: 100%;
    color: #333;
    letter-spacing: 1px;
    background: #f5f5f5;
    font-weight: 300;
    touch-action: manipulation;
}
#root, .page {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}
a {
    text-decoration: none;
    color: #333;
}
.ruler {
    position:absolute;
    top: 0;
    left: 0;
}
.ruler.horizontal {
    left: 0px;
    width: 100%;
    height: 30px;
}
.ruler.vertical {
    top: 0px;
    width: 30px;
    height: 100%;
}
.box {
    position: relative;
    width: 30px;
    height: 30px;
    background: #444;
    box-sizing: border-box;
    z-index: 21;
}
.box:before, .box:after {
    position: absolute;
    content: "";
    background: #777;
}
.box:before {
    width: 1px;
    height: 100%;
    left: 100%;
}
.box:after {
    height: 1px;
    width: 100%;
    top: 100%;
}

.container {
    position: relative;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    max-width: calc(100% - 60px);
    width: 100%;
}

.badges {
    padding: 10px;
}
.badges img {
    height: 20px;
    margin: 0px 2px;
}
.buttons {
    text-align: center;
    margin: 0;
    padding: 10px;
}
.buttons a {
    margin: 0;
    position: relative;
    text-decoration: none;
    color: #333;
    border: 1px solid #333;
    padding: 12px 30px;
    min-width: 140px;
    text-align: center;
    display: inline-block;
    box-sizing: border-box;
    margin: 5px;
    transition: all ease 0.5s;
}
.buttons a:hover {
    background: #333;
    color: #fff;
}

p {
    padding: 0;
    margin: 0;
}

.dragit {
    font-weight: bold;
}