the site is moving slightly right or left on clicking between some menu items

[Bogi13]

hi,

Please advise:

1. the site is moving slightly right / left when I click on differenet menu items, clicking between some of them does not cause any shift while clicking between others does,

2. pictures on the became matte, while on a C/local drive and before an upload they are bright,

the site: www.starasynagoga.pl

thx 

[BenPleysier]

1. This is because the content of the resultant page does not create a vertical scrollbar like the other pages do. See here for more: https://css-tricks.com/eliminate-jumps-in-horizontal-centering-by-forcing-a-scroll-bar/

2. This is because of opacity set to 0.7. Change this to a value of 1 and all is well.

.container {
	width: 990px;
	background-color: #FFF;
	margin: 0 auto; /* the auto value on the sides, coupled with the width, centers the layout */
	border-style:;
	border-width:;
	opacity:0.7;
}

[Bogi13]

thank you Ben, opacity set at 0.7 is to blame. Will correct it. 

I have to digest your answer for the 2nd point. 

[Nancy OShea]

You should give some thought to making the site responsive for people on smaller devices.