GitHub 6740★

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Close button

HTML

<button class="close-button">
<div class="close-button__line close-button__line--first"></div>
<div class="close-button__line close-button__line--second"></div>
</button>

CSS

.close-button {
/* Reset */
background-color: transparent;
border-color: transparent;

/* Cursor */
cursor: pointer;

/* Size */
height: 3rem;
width: 3rem;

/* Used to position the inner */
position: relative;
}

.close-button__line {
/* Background color */
background-color: #d1d5db;

/* Position */
position: absolute;

/* Size */
height: 1px;
width: 100%;
}

.close-button__line--first {
/* Position */
left: 0px;
top: 50%;
transform: translate(0%, -50%) rotate(45deg);

/* Size */
height: 1px;
width: 100%;
}

.close-button__line--second {
/* Position */
left: 50%;
top: 0px;
transform: translate(-50%, 0%) rotate(45deg);

/* Size */
height: 100%;
width: 1px;
}
Demo
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