3D TABS with imrovments of width and height - html

Question

I have a 3D Tab on my website which I got from codepen (codepen.io/vavik96/pen/QjPVRL).
I increased the width (800px) and height (550px).
No matter how much I tried I couldn't set a right size to it.
It should be screen web page sized to meet my needs.
Somebody help me.
Here my work.
.perspective {
-webkit-perspective: 76em;
perspective: 76em;
-webkit-perspective-origin: 50% 50px;
perspective-origin: 50% 50px;
width: 494px;
margin: 0 auto;
font-family: 'Roboto', sans-serif;
font-weight: 100;
color: #fff;
text-align: center;
}
input { display: none; }
.tab {
position: absolute;
width: 80px;
height: 70px;
background: pink;
right: 0;
line-height: 70px;
font-weight: 300;
}
.tab:nth-child(1) {
top: -80px;
left:84px;
background: #06D6A0;
}
.tab:nth-child(2) {
top: -80px;
left: 174px;
background: #1B9AAA;
}
.tab:nth-child(3) {
top: -80px;
left: 262px;
background: #EF476F;
}
.tab:nth-child(4) {
top: -80px;
left: 352px;
background: red;
}
.cube {
position: relative;
width: 300px;
height: 200px;
-webkit-transform-origin: 0 100px;
-ms-transform-origin: 0 100px;
transform-origin: 100px 100px;
-webkit-transform-style: preserve-3d;
transform-style: preserve-3d;
-webkit-transition: -webkit-transform 0.5s ease-in;
transition: transform 0.5s ease-in;
}
.tab-content {
width: 800px;
height: 550px;
position: absolute;
}
.tab-content h1 {
font-size: 25px;
margin: 75px 0 10px;
font-weight: 300;
}
.tab-content p { font-size: 12px; }
.tab-content:nth-child(1) {
-webkit-transform: translateZ(100px);
transform: translateZ(700px);
background: #06D6A0;
}
.tab-content:nth-child(2) {
-webkit-transform: rotateX(-270deg) translateY(-100px);
transform: rotateY(270deg) translateX(-100px);
-webkit-transform-origin: top left;
-ms-transform-origin: top left;
transform-origin: top left;
background: #EF476F;
}
.tab-content:nth-child(3) {
-webkit-transform: rotateX(90deg) translateY(200px);
transform: rotateY(90deg) translateX(100px);
-webkit-transform-origin: bottom center;
-ms-transform-origin: bottom center;
transform-origin: bottom right;
background: red;
}
.tab-content:nth-child(4) {
-webkit-transform: translateZ(100px);
transform: translateZ(-100px);
background: #1B9AAA;
}
#tab-one:checked ~ .cube {
-webkit-transform: rotateY(90deg);
transform: rotateY(-90deg);
}
#tab-two:checked ~ .cube {
-webkit-transform: rotateX(0deg);
transform: rotateX(0deg);
}
#tab-three:checked ~ .cube {
-webkit-transform: rotateX(-90deg);
transform: rotateY(-180deg);
}
#tab-four:checked ~ .cube {
-webkit-transform: rotateX(90deg);
transform: rotateY(-270deg);
}
<br>
<br>
<br>
<br>
<br>
<div class="perspective">
<label class="tab" for="tab-two">Tab 2</label>
<label class="tab" for="tab-one">Tab 1</label>
<label class="tab" for="tab-three">Tab 3</label>
<label class="tab" for="tab-four">Tab 4</label>
<input type="radio" name="tabs" id="tab-one">
<input type="radio" name="tabs" id="tab-two">
<input type="radio" name="tabs" id="tab-three">
<input type="radio" name="tabs" id="tab-four">
<div class="cube">
<div class="tab-content">
<h1>Tab 1</h1>
<p>THIS IS AWESOME</p>
</div>
<div class="tab-content">
<h1>Tab 2</h1>
<p>THIS IS COOL</p>
</div>
<div class="tab-content">
<h1>Tab 3</h1>
<p>THIS IS SWEET</p>
</div>
<div class="tab-content">
<h1>Tab 4</h1>
<p>THIS IS Good JOB</p>
</div>
</div>
</div>

Answer 1

width: 100% !important;
please add your code to your question next time you ask someone to help you.