Question: I would like to get all the fields in a database, `information_schema` is not available.

However, I can show the fields of a single table using

`show columns from table`

How can I add another show command?
I tried `UNION`, but it gives me syntax error.

Answer: 
If you have a solid background color try this

```css
body {
  background: grey;
  margin: 0;
}

.container {
  width: 100%;
  height: 200px;
  background: url("http://lorempixel.com/1000/300/nature/3");
  background-size:cover;
}

.content {
  height: 100px;
  color: #fff;
}

.shape {
  position: relative;
  height: 100px;
  overflow:hidden;
}

.shape:after {
  content: "";
  position: absolute;
  width: 40%;
  height: 100%;
  background: grey;
  top: 0;
  transform: skew(30deg);
  left: -10%;
}

.shape:before {
  content: "";
  position: absolute;
  width: 40%;
  height: 100%;
  background: grey;
  top: 0;
  transform: skew(-30deg);
  right: -10%;
}
```

```html
<div class="container">
  <div class="content">
    Contents
  </div>
  <div class="shape"></div>
</div>
```
I think this will do the trick. Hope it will works for you.

```css
.main-box{
  background:#ddd;
  width:300px;
  height:100px;
  display:inline-block;
  position:relative;
  text-align:center;
}
.main-box:after{
  content:'';
  width: 0;
  height: 0;
  border-bottom: 70px solid #999;
  border-right: 70px solid transparent;
  position:absolute;
  left:0;
  bottom:0;
}
.main-box:before{
  content:'';
  width: 0;
  height: 0;
  border-bottom: 70px solid #999;
  border-left: 70px solid transparent;
  position:absolute;
  right:0;
  bottom:0;
}
```

```html
<div class="main-box"> #trial</div>
```