Vue Sparkline - size
Specifies the UI component's size in pixels.
You can specify a custom width and height for the component:
| Fixed | Relative | 
|---|---|
| Assign values to the size object's height and width properties or specify a container for the component. | Specify a container for the component. The component occupies the container area on initialization. If a container's size changes, the component's size does not change. If you want to update the size, call the render method. | 
The size object has priority over the container.
The size configuration object reserves space for the main UI component elements, while displaying a tooltip may require extra space. To reserve the area around the UI component for the tooltip, you can apply a margin to the UI component's container.
jQuery
$(function() {
    $("#sparklineContainer").dxSparkline({
        // ...
        size: {
            height: 300,
            width: 600
        }
    });
});Angular
<dx-sparkline ... >
    <dxo-size
        [height]="300"
        [width]="600">
    </dxo-size>
</dx-sparkline>
import { Component } from '@angular/core';
@Component({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.css']
})
export class AppComponent {
    // ...
}
import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';
import { DxSparklineModule } from 'devextreme-angular';
@NgModule({
    declarations: [
        AppComponent
    ],
    imports: [
        BrowserModule,
        DxSparklineModule
    ],
    providers: [ ],
    bootstrap: [AppComponent]
})
export class AppModule { }Vue
<template>
    <DxSparkline ... >
        <DxSize
            :height="300"
            :width="600"
        />
    </DxSparkline>
</template>
<script>
import DxSparkline, {
    DxSize
} from 'devextreme-vue/sparkline';
export default {
    components: {
        DxSparkline,
        DxSize
    },
    // ...
}
</script>React
import React from 'react';
import Sparkline, {
    Size
} from 'devextreme-react/sparkline';
class App extends React.Component {
    render() {
        return (
            <Sparkline ... >
                <Size
                    height={300}
                    width={600}
                />
            </Sparkline>
        );
    }
}
export default App;Alternatively, you can use CSS to style the UI component's container:
jQuery
$(function() {
    $("#sparkline").dxSparkline({
        // ...
    });
});
#sparkline {
    width: 85%;
    height: 70%;
}Angular
<dx-sparkline ...
    id="sparkline">
</dx-sparkline>
#sparkline {
    width: 85%;
    height: 70%;
}Vue
<template>
    <DxSparkline ...
        id="sparkline">
    </DxSparkline>
</template>
<script>
import DxSparkline from 'devextreme-vue/sparkline';
export default {
    components: {
        DxSparkline
    },
    // ...
}
</script>
<style>
#sparkline {
    width: 85%;
    height: 70%;
}
</style>React
import React from 'react';
import Sparkline from 'devextreme-react/sparkline';
class App extends React.Component {
    render() {
        return (
            <Sparkline ...
                id="sparkline">
            </Sparkline>
        );
    }
}
export default App;
#sparkline {
    width: 85%;
    height: 70%;
}If you have technical questions, please create a support ticket in the DevExpress Support Center.