i ও ii
i ও iii
গ) ii ও iii
i, ii ii
কোনটি প্রাকৃতিক পলিমার?
ক পাট
ও রেজিন
গ) পিভিসি
পলিথিন
এসিডিক মাটিতে প্রয়ােগ করতে হয়
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i ও ii
i ও iii
গ) ii ও iii
i, ii ii
কোনটি প্রাকৃতিক পলিমার?
ক পাট
ও রেজিন
গ) পিভিসি
পলিথিন
এসিডিক মাটিতে প্রয়ােগ করতে হয়
[tex]<!DOCTYPE html>
<html lang="en">
<head>
<title>Bulb</title>
</head>
<body>
<main>
<input class="l" type="checkbox">
</main>
<style>
*, *:before, *:after {
box-sizing: border-box;
margin: 0;
padding: 0;
}
:root {
/* minFontSize + (maxFontSize - minFontSize) * (100vw - minVWidth)/(maxVWidth - minVWidth) */
font-size: calc(64px + (80 - 64) * (100vw - 320px)/(960 - 320));
}
body, input {
font-size: 1em;
line-height: 1.5;
}
body {
background: #bbb;
}
input {
display: block;
margin-bottom: 1.5em;
}
main {
padding: 1.5em 0 0 0;
text-align: center;
}
.l {
background-color: rgba(0,0,0,0.7);
border-radius: 0.75em;
box-shadow: 0.125em 0.125em 0 0.125em rgba(0,0,0,0.3) inset;
color: #fdea7b;
display: inline-flex;
align-items: center;
margin: auto;
padding: 0.15em;
width: 3em;
height: 1.5em;
transition: background-color 0.1s 0.3s ease-out, box-shadow 0.1s 0.3s ease-out;
-webkit-appearance: none;
-moz-appearance: none;
appearance: none;
}
.l:before, .l:after {
content: "";
display: block;
}
.l:before {
background-color: #d7d7d7;
border-radius: 50%;
width: 1.2em;
height: 1.2em;
transition: background-color 0.1s 0.3s ease-out, transform 0.3s ease-out;
z-index: 1;
}
.l:after {
background:
linear-gradient(transparent 50%, rgba(0,0,0,0.15) 0) 0 50% / 50% 100%,
repeating-linear-gradient(90deg,#bbb 0,#bbb,#bbb 20%,#999 20%,#999 40%) 0 50% / 50% 100%,
radial-gradient(circle at 50% 50%,#888 25%, transparent 26%);
background-repeat: no-repeat;
border: 0.25em solid transparent;
border-left: 0.4em solid #d8d8d8;
border-right: 0 solid transparent;
transition: border-left-color 0.1s 0.3s ease-out, transform 0.3s ease-out;
transform: translateX(-22.5%);
transform-origin: 25% 50%;
width: 1.2em;
height: 1em;
}
/* Checked */
.l:checked {
background-color: rgba(0,0,0,0.45);
box-shadow: 0.125em 0.125em 0 0.125em rgba(0,0,0,0.1) inset;
}
.l:checked:before {
background-color: currentColor;
transform: translateX(125%)
}
.l:checked:after {
border-left-color: currentColor;
transform: translateX(-2.5%) rotateY(180deg);
}
/* Other States */
.l:focus {
/* Usually an anti-A11Y practice but set to remove an annoyance just for this demo */
outline: 0;
}
</style>
</body>
</html>[/tex]
i ও iii
গ) ii ও iii
i, ii ii
কোনটি প্রাকৃতিক পলিমার?
ক পাট
ও রেজিন
গ) পিভিসি
পলিথিন
এসিডিক মাটিতে প্রয়ােগ করতে হয়
[tex]<!DOCTYPE html>
<html lang="en">
<head>
<title>Bulb</title>
</head>
<body>
<main>
<input class="l" type="checkbox">
</main>
<style>
*, *:before, *:after {
box-sizing: border-box;
margin: 0;
padding: 0;
}
:root {
/* minFontSize + (maxFontSize - minFontSize) * (100vw - minVWidth)/(maxVWidth - minVWidth) */
font-size: calc(64px + (80 - 64) * (100vw - 320px)/(960 - 320));
}
body, input {
font-size: 1em;
line-height: 1.5;
}
body {
background: #bbb;
}
input {
display: block;
margin-bottom: 1.5em;
}
main {
padding: 1.5em 0 0 0;
text-align: center;
}
.l {
background-color: rgba(0,0,0,0.7);
border-radius: 0.75em;
box-shadow: 0.125em 0.125em 0 0.125em rgba(0,0,0,0.3) inset;
color: #fdea7b;
display: inline-flex;
align-items: center;
margin: auto;
padding: 0.15em;
width: 3em;
height: 1.5em;
transition: background-color 0.1s 0.3s ease-out, box-shadow 0.1s 0.3s ease-out;
-webkit-appearance: none;
-moz-appearance: none;
appearance: none;
}
.l:before, .l:after {
content: "";
display: block;
}
.l:before {
background-color: #d7d7d7;
border-radius: 50%;
width: 1.2em;
height: 1.2em;
transition: background-color 0.1s 0.3s ease-out, transform 0.3s ease-out;
z-index: 1;
}
.l:after {
background:
linear-gradient(transparent 50%, rgba(0,0,0,0.15) 0) 0 50% / 50% 100%,
repeating-linear-gradient(90deg,#bbb 0,#bbb,#bbb 20%,#999 20%,#999 40%) 0 50% / 50% 100%,
radial-gradient(circle at 50% 50%,#888 25%, transparent 26%);
background-repeat: no-repeat;
border: 0.25em solid transparent;
border-left: 0.4em solid #d8d8d8;
border-right: 0 solid transparent;
transition: border-left-color 0.1s 0.3s ease-out, transform 0.3s ease-out;
transform: translateX(-22.5%);
transform-origin: 25% 50%;
width: 1.2em;
height: 1em;
}
/* Checked */
.l:checked {
background-color: rgba(0,0,0,0.45);
box-shadow: 0.125em 0.125em 0 0.125em rgba(0,0,0,0.1) inset;
}
.l:checked:before {
background-color: currentColor;
transform: translateX(125%)
}
.l:checked:after {
border-left-color: currentColor;
transform: translateX(-2.5%) rotateY(180deg);
}
/* Other States */
.l:focus {
/* Usually an anti-A11Y practice but set to remove an annoyance just for this demo */
outline: 0;
}
</style>
</body>
</html>[/tex]
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