.content {
	width: 960px; /*ширина блока*/
	box-sizing: border-box;
	background-color: #fff;
	border: 3px solid brown;
	border-radius: 6px;
}

.header-box {
	display: flex;
	height: 80px;
	padding: 0px 30px;
	justify-content: space-between;
}

.header-name {
	line-height: 80px;
	font-size: 24px;
}

.header-cross {
	position: relative;
	width: 20px; height: 20px;
	top: 50%;
	transform: translateY(-50%);
	cursor: pointer;
}

.header-cross:hover {
	cursor: pointer;
}

.cross {
	position: relative;
	width: 2px; height: 20px;
	background-color: transparent;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
}

.cross::before, .advert_cross::before {
	content: '';
	position: absolute;
	width: 2px; height: 20px;
	background-color: brown;
	top: 0px;
	left: 0px;
	border-radius: 1px;
	transform: rotate(-45deg);
}

.cross::after, .advert_cross::after {
	content: '';
	position: absolute;
	width: 2px; height: 20px;
	background-color: brown;
	top: 0px;
	left: 0px;
	border-radius: 1px;
	transform: rotate(45deg);
}